Volcanoes
1672August 4, 1672 Eruption of Merapi
Merapi, Indonesia erupted with a Volcanic Explosivity Index of 3. It killed 3,000 people.
- When
- August 4, 1672
- VEI
- 3
- Deaths
- 3,000
- Where
- Merapi, Indonesia
Every tornado, hurricane, flood, blizzard, heat wave, record, earthquake, eruption, tsunami, wildfire and geomagnetic storm on record for August 4, in any year, each linked to its full record.
Every event with a place, colored by kind. Tap one to open its record.
By deaths, damage and strength together, across every archive.
Volcanoes
Merapi, Indonesia erupted with a Volcanic Explosivity Index of 3. It killed 3,000 people.
Earthquakes
A magnitude 7.9 earthquake struck Northeastern Coast, Dominican Republic. With the tsunami it caused, it killed 1,790 people and did severe (about $5 to $25 million) damage.
Tsunamis
A tsunami caused by a magnitude 7.9 earthquake struck Northeastern Coast, Dominican Republic, with a maximum water height of 5 meters. It killed 1,790 people and did severe (about $5 to $25 million) damage.
Hurricanes and tropical storms
Hurricane Isaias crossed the coast near Sunset Beach, NC as a category 1 hurricane, 80 kt (90 mph), central pressure 986 mb. It killed 12 people in all, by the National Hurricane Center’s count. Hurricane Isaias was a destructive tropical cyclone that caused extensive damage across the Caribbean and the East Coast of the United States while also giving rise to the strongest tropical cyclone-spawned tornado since Hurricane Rita in 2005. The ninth named storm and second hurricane of the extremely active and record-breaking 2020 Atlantic hurricane season, Isaias originated from a vigorous tropical wave off the coast of Africa that was first identified by the National Hurricane Center on…
From Wikipedia, CC BY-SA 4.0.
Volcanoes
Paluweh, Indonesia erupted with a Volcanic Explosivity Index of 3. It killed 226 people and injured 200. The eruption caused a tsunami.
Tsunamis
A tsunami with a source recorded as volcano and landslide struck Flores Sea, Indonesia, with a maximum water height of 10 meters. It killed 226 people and injured 200.
Hurricanes and tropical storms
Hurricane Earl crossed the coast near Belize City, Belize District, Belize as a category 1 hurricane, 75 kt (85 mph), central pressure 979 mb. It killed 65 people in all. Hurricane Earl was the deadliest Atlantic hurricane to impact Mexico since Stan in 2005. The fifth named storm and second hurricane of the 2016 Atlantic hurricane season, Earl formed from a tropical wave south of Jamaica on August 2.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Jean reached its peak of 140 kt (160 mph) with a central pressure of 950 mb, a category 5 storm.
Hurricanes and tropical storms
Hurricane Guillermo reached its peak of 140 kt (160 mph) with a central pressure of 921 mb, a category 5 storm.
Hurricanes and tropical storms
Category 1 Hurricane Isaias with maximum sustained winds of 85 mph, made landfall near Ocean Isle Beach, NC at 11:10 pm on August 3rd. Isaias' intensity weakened back to Tropical Storm strength as its forward speed increased to near 30 mph early morning of August 4th.
Heat and drought
The first and only Heat Wave of the summer started in August 4th and lasted through August 16th. Eight deaths were reported in the St. Louis Metro area. The city of St. Louis reported 422 heat related injuries. St. Louis County reported 519 heat related injuries.
Hurricanes and tropical storms
Hurricane Bess reached its peak of 130 kt (150 mph) with a central pressure of 930 mb, a category 4 storm.
34 on August 4, oldest first.
An F3 tornado touched down in Haakon County, South Dakota and tracked 6.1 miles. From Grazulis's record of significant tornadoes: Plum Creek, SD.
An F3 tornado touched down in Maricopa County, Arizona and tracked 12 miles, 10 yards wide at its widest.
An F1 tornado touched down in Redwood County, Minnesota and tracked 2 miles, 27 yards wide at its widest, killing 1 and injuring 2.
A moist and very unstable air mass was in place across Iowa. Lifted indices were in the -12° C. range by the early afternoon hours. Surface temperatures reached the middle to upper 80s with dew point readings in the lower to middle 70s.
Thunderstorms spawned an F1 tornado during the late afternoon of Wednesday August 4th in western Dauphin County. The tornado first touched down near the intersection of Walnut and Brisban streets, in Paxtang.
A powerful line of thunderstorms moved across northern Illinois during the evening hours of August 4th. Widespread and significant wind damage was reported along with several brief tornadoes on the leading edge of this line of storms.
A line of powerful thunderstorms moved across northwest Indiana during the evening hours of August 4th. These storms produced widespread and significant wind damage.
An organized complex of thunderstorms developed ahead of a cold front as it approached southern Illinois and southeast Missouri during the hottest and most unstable time of day.
All modes of severe weather were noted during this event. Hail was the primary threat from the scattered early event storms. Then, the bow echo pushed across Central Indiana producing widespread wind damage.
A moist, tropical environment was in place across southern New England on the morning of August 4th. A short-wave trough was approaching, along with a cold front.
Tropical Storm Isaias brought high winds, heavy rain, several tornadoes, and coastal flooding to the mid-Atlantic region, becoming the most impactful tropical cyclone to impact most of the region since Sandy in 2012.
The center of Tropical Storm Isaias tracked north just inland of the Middle Atlantic Coast from late Monday night, August 3rd through Tuesday morning, August 4th.
Tropical Storm Isaias moved up the east coast, passing through southern Maryland on the morning of Tuesday, August 4th, 2020, spawning several tornadoes as well as flooding rain and tropical storm force winds.
The center of Tropical Storm Isaias tracked north just inland of the Middle Atlantic Coast from late Monday night, August 3rd through Tuesday morning, August 4th.
31 tornadoes were recorded on August 4, 2020, in North Carolina, Virginia, Maryland, Delaware, New Jersey, Pennsylvania, Connecticut, South Dakota and more.
The center of Tropical Storm Isaias tracked north just inland of the Middle Atlantic Coast from late Monday night, August 3rd through Tuesday morning, August 4th.
Tropical Storm Isaias brought high winds, heavy rain, several tornadoes, and coastal flooding to the mid-Atlantic region, becoming the most impactful tropical cyclone to impact most of the region since Sandy in 2012.
Isolated severe thunderstorm in advance of a surface trough produced a tornado across portions of Somerset county in the Lower Maryland Eastern Shore.
An MCV moved through northern sections of Missouri during the evening of August 4th into the early morning hours of August 5th. Widespread showers and storms developed. Some of the storms became severe. There were some damaging winds reported as well as two tornadoes.
Hurricane Debby made landfall north of the local area along the Big Bend region of Florida near Steinhatchee around 7 AM EST on August 5th as a Category 1 hurricane with maximum sustained winds of 80 mph and a minimum pressure of 979 mb.
18 on August 4, oldest first.
Hurricane Bess reached its peak of 130 kt (150 mph) with a central pressure of 930 mb, a category 4 storm.
Hurricane Jean reached its peak of 140 kt (160 mph) with a central pressure of 950 mb, a category 5 storm.
Hurricane Guillermo reached its peak of 140 kt (160 mph) with a central pressure of 921 mb, a category 5 storm.
Hurricane Man-Yi reached its peak of 120 kt (140 mph) with a central pressure of 922 mb, a category 4 storm.
Tropical Storm Barry, which formed as a tropical wave over the eastern Gulf of Mexico on 2 August, quickly intensified on 5 August and made landfall between Panama City and Destin, Florida, during the pre-dawn hours of 6 August.
Tropical Storm Barry affected the area on the 4th through the 6th. Northwest Florida was put under a Tropical Storm Watch at 900 am on August 4. The watch was upgraded to a Tropical Storm Warning at 300 pm on August 4 and to a Hurricane Warning at 700 am on August 5.
Hurricane Iselle reached its peak of 120 kt (140 mph) with a central pressure of 947 mb, a category 4 storm.
Hurricane Earl crossed the coast near Belize City, Belize District, Belize as a category 1 hurricane, 75 kt (85 mph), central pressure 979 mb. It killed 65 people in all. Hurricane Earl was the deadliest Atlantic hurricane to impact Mexico since Stan in 2005. The fifth named storm and second hurricane of the 2016 Atlantic hurricane season, Earl formed from a tropical wave south of Jamaica on August 2.
From Wikipedia, CC BY-SA 4.0.
Hurricane Isaias crossed the coast near Sunset Beach, NC as a category 1 hurricane, 80 kt (90 mph), central pressure 986 mb. It killed 12 people in all, by the National Hurricane Center’s count. Hurricane Isaias was a destructive tropical cyclone that caused extensive damage across the Caribbean and the East Coast of the United States while also giving rise to the strongest tropical cyclone-spawned tornado since Hurricane Rita in 2005. The ninth named storm and second hurricane of the extremely active and record-breaking 2020 Atlantic hurricane season, Isaias originated from a vigorous tropical wave off the coast of Africa that was first identified by the National Hurricane Center on…
From Wikipedia, CC BY-SA 4.0.
Category 1 Hurricane Isaias with maximum sustained winds of 85 mph, made landfall near Ocean Isle Beach, NC at 11:10 pm on August 3rd. Isaias' intensity weakened back to Tropical Storm strength as its forward speed increased to near 30 mph early morning of August 4th.
Category 1 Hurricane Isaias with maximum sustained winds of 85 mph, made landfall near Ocean Isle Beach, NC at 11:10 pm on August 3rd. Isaias' intensity weakened back to Tropical Storm strength as its forward speed increased to near 30 mph during the early morning of August 4th.
Tropical Storm Isaias moved from coastal Virginia eastern New York state, near the Connecticut/Massachusetts border on Tuesday, August 4. As the storm reached the New York City area, southerly winds were maximizing across southern New England, causing widespread wind damage.
Tropical Storm Isaias was the first tropical storm to impact New Hampshire since 2011. The center of the storm tracked west of the state, keeping the flooding rain associated with the storm across New York.
The center of Tropical Storm Isaias tracked north just inland of the Middle Atlantic Coast from late Monday night, August 3rd through Tuesday morning, August 4th.
The center of Tropical Storm Isaias tracked north just inland of the Middle Atlantic Coast from late Monday night, August 3rd through Tuesday morning, August 4th.
The center of Tropical Storm Isaias tracked north just inland of the Middle Atlantic Coast from late Monday night, August 3rd through Tuesday morning, August 4th.
Tropical Storm Isaias moved from coastal Virginia eastern New York state, near the Connecticut/Massachusetts border on Tuesday, August 4. As the storm reached the New York City area, southerly winds were maximizing across southern New England, causing widespread wind damage.
Tropical Storm Isaias moved up the east coast, passing through southern Maryland on the morning of Tuesday, August 4th, 2020, spawning several tornadoes as well as flooding rain and tropical storm force winds.
23 on August 4, oldest first.
Heavy rains dropped 4 to 9 inches of rain in east central Nebraska, causing record flooding to the Pebble and Maple Creeks. Dodge reported a little more than 6 inches of rain. Extensive damage was done to the homes and businesses in Nickerson and Winslow.
Heavy rains fell in Colfax County, filling streets and resulting in damage to crops and roads. Nearly 8 inches of rain was reported at Schuyler. Thunderstorms redeveloping over the same area and abundant tropical moisture produced the heavy rains.
Seven inches of rain at Wisner and west of West Point resulted in water over the roads at Wisner and Beemer. Highway 275 was closed at Crowell.
Heavy thunderstorm rains across Colorado Springs produced urban and small stream flooding, and caused drainage ditches to run rapidly swell to levels of 6 to 8 feet. Two boys playing in a storm drain were caught by the fast flowing water.
Thunderstorms produced heavy rain over southern Kane, much of Du Page and part of Cook County. Heavier rainfall amounts included 2.72 inches at Aurora, 2.51 inches at Burr Ridge, 2.5 inches at Bolingbrook, 2.23 inches near Midway Airport and 1.99 inches at Willow Springs.
Synoptic and Mesoscale conditions for August 5th...A large upper trough was anchored over the central plains the morning of August 4th with a surface reflection across southeastern Iowa.
Abundant tropical moisture, with a direct trajectory off the Atlantic Ocean, was lifted up the higher terrain of northwest Madison County, resulting in potent precipitation-producing showers and thunderstorms that became anchored because of a light mean wind flow aloft.
Several inches of rain fell in a short period of time across the county. This resulted in widespread flash flooding. The damage that resulted prompted the county to classified as a Presidentially declared disaster area.
Several clusters of showers and thunderstorms moved across central and south central Ohio during the late morning and early afternoon, and across west central Ohio in the late afternoon.
Law enforcement reported a tree on a road.
Trees and power lines were downed.
A funnel cloud was observed west of Custar near the Henry County line. The funnel came within 20 feet of touching the ground. No damage occurred.
Strong thunderstorms produced heavy rainfall over the higher terrain of the Catalina Mountains. This heavy rainfall produced a flash flood which moved downstream into Bear Canyon and the popular Seven Falls area causing two fatalities.
Two rounds of severe weather moved through central Kentucky on August 4th. The first produced torrential rainfall in the Louisville Metro area with up to seven inches of rain falling in around two hours time.
A very moist airmass remained in place over Iowa. Precipitable water values were near 2.25 inches when a wave of low pressure moved northeast along a stalled front to the south of the state.
The flash flooding and flooding that occurred during the morning of August 4th was the result of two rounds of heavy rainfall.
A line of severe thunderstorms moved across northern Illinois during the afternoon hours of August 4th.
A couple of large complexes of thunderstorms moved along or just north of a stationary frontal boundary situated over Southern Kansas, during the early morning hours of August 4th and August 5th, 2012.
The second severe weather event for the day occurred north of the Massachusetts Turnpike (Interstate 90). This severe weather was triggered by an approaching cold front from the west.
A weaken frontal boundary along the Interstate 10 corridor in southeast Louisiana and south Mississippi along with local land-lake/sea breeze interaction aided in the development of thunderstorms producing heavy rain along this corridor on all 3 days.
A line of pre-frontal convection developed well ahead of an approaching cold front in a moderate CAPE and moderate shear environment over central Pennsylvania during the afternoon of August 4, 2017.
Scattered to numerous thunderstorms with very heavy rainfall developed over southeast Missouri during the night of the 3rd.
A stationary front was situated from southeast Missouri into northwest Tennessee during the early morning hours of August 4, 2023.
33 on August 4, oldest first.
Severe thunderstorms brought damaging hail and wind to much of Oklahoma on August 4, 1992. Tennis ball-size hail fell near Glencoe, in Payne County, and the storms took down power lines west of Okemah, in Okfuskee County. Lightning struck and injured nine military personnel at Camp Gruber, in Muskogee County.
From the National Weather Service in Norman, Oklahoma.
Hail up to hen egg-size pelted Pueblo, causing an estimated $20 million in damage to autos, residences and businesses.
Trees were downed.
A rapidly strengthening thunderstorm produced wind gusts of at least 60 mph across the Washington area, downing some trees and power lines. A pontoon boat on Missouri River was caught by the storm and overturned by the wind gusts.
Thunderstorm wind gusts downed trees southeast of St. Clair. A woman was killed when struck in the head by a large tree branch.
A line of strong thunderstorms accompanied by very strong winds moved through the Alamogordo area during the late afternoon and early evening hours.
Supercell thunderstorm formed over the Bitterroot Valley near Hamilton and moved north through the valley, impacting the communities of Stevensville to Florence.
A strong thunderstorm wind gust, estimated at near 45 mph, caused the roof and back wall of a body shop at a car dealership in Fairborn to collapse. A 38 year old man was crushed when the wall collapsed and subsequently died.
Several large trees down near U.S. Highway 127.
The Laurens County Emergency Management Director reported penny-sized hail.
A line of thunderstorms developed in northern Illinois and rapidly became severe, producing wind damage as it moved into northern Indiana.
A cold front slowly moved southeast into eastern Iowa during the daytime hours of August 4. South to southwest winds brought increased heat and humidity with high temperatures that ranged from 82 at Freeport, IL to 99 at Muscatine, IA.
A large bow echo developed in advance of a front across southern Iowa and northern Missouri during the early morning hours of August 4th. The storms then raced eastward across central and southeast Illinois, producing wind gusts of between 60 and 70 mph.
An upper level disturbance crossing the Plains aided in the developement of a MCS, which continued on through the overnight hours as it pushed east into an area of greater instability, while additional elevated thunderstorms developed along the nose of a 30 to 40 knot low level…
Two thunderstorm complexes moved out of southern Kentucky into Middle Tennessee as a result of strong northwesterly flow aloft.
A very unstable air mass was in place with temperatures in the 90s and dew points in the upper 70s. While forcing was weak, there was enough lift ahead of a mid-level impulse to spark widespread convection in the form of a mesoscale convective system.
In a hot and humid air, thunderstorms moved through southeast Ohio and into West Virginia during the afternoon. Low level convergence was aided by a leftover boundary from early morning convection.
A complex of thunderstorms moved into northwestern Ohio from portions of northern Indiana. While the storms were weakening, isolated wind damage did occur, which resulted in one death at a construction site in Edgerton, Ohio.
A mesoscale convective system moved along a boundary situated over east central Ohio, southern Pennsylvania and Northern West Virginia.
A cold front moving across the area caused a cluster of strong to severe storms to develop across southwest Missouri which produced wind damage and severe hail.
An upper level disturbance moved across southern New England igniting showers and thunderstorms. A cold pool aloft allowed for steep mid level lapse rates as well as temperatures cold enough for large hail.
An approaching cold front triggered a cluster of severe thunderstorm producing multiple macrobursts that impacted Southern Connecticut.
A line of severe thunderstorms developed across Long Island, NY and raced toward Rhode Island and southeastern Massachusetts. These storms caused significant wind damage knocking down a significant number of trees.
An approaching cold front triggered a cluster of severe thunderstorms producing multiple macrobursts that impacted the North Shore of Long Island, from Northwest Nassau County onto the North Fork of Long Island.
An area of low pressure moved across the central Great Lakes on August 4th forcing a strong cold front across the region. A line of thunderstorms developed in advance of the front late in the morning.
Showers and thunderstorms developed along and ahead of an advancing cold front. The thunderstorms produced damaging winds that downed trees and power lines. In Buffalo, the winds partially tore the roof off a building at Utica Street and Massachusetts Avenue.
Multiple waves of thunderstorms rolled through the state on the 5th and into the beginning of the 6th, providing the state with widespread rainfall and strong to severe thunderstorms.
Thunderstorms developed in the vicinity of a cold front over western North Dakota, with one storm becoming severe producing one inch diameter hail to the east of Richardton in Stark County.
Tropical Storm Isaias moved north along the east coast of the United States on August 3rd and 4th, eventually moving across southeast NY state during the afternoon of August 4th and across the Champlain Valley during the evening hours.
Strong daytime heating from a building ridge and rotating disturbances around the ridge brought moisture with isolated thunderstorms into southeastern Oregon and southeastern Idaho.
A surface trough ignited numerous showers and thunderstorms that resulted in scattered instances of damaging wind gusts and sporadic large hail.
A surface trough ignited numerous showers and thunderstorms that resulted in scattered instances of damaging wind gusts and sporadic large hail.
There were 2 skydivers in Lake Elsinore, one instructor and one recreationalist. While descending it was reported that a large dust devil extending over 100 feet above ground cause their parachute to twist and loose control. They accelerated to the ground.
16 on August 4, oldest first.
Temperatures in the Kern County Deserts soared to greater than 110 degrees in several locations during the period of August 4th through 6th. The China Lake/Ridgecrest/Inyokern area climbed to 111 degrees F. on August 4th and 112 on the 5th.
The body of a 45-year old woman who was overcome by heat was discovered in New Braunfels. Time of death was not certain.
An extensive heat wave persisted for five days and resulted in five fatalities in Minneapolis and its suburbs. All deaths occurred in Hennepin County and were determined by the county medical examiner.
A 64 year old female from Kansas City in Jackson county died from heat related causes on August 4th.
The first and only Heat Wave of the summer started in August 4th and lasted through August 16th. Eight deaths were reported in the St. Louis Metro area. The city of St. Louis reported 422 heat related injuries. St. Louis County reported 519 heat related injuries.
The first and only real Heat Wave of the summer began on August 4th and lasted through August 16th. High temperatures were consistently from the middle 90s to around 100 with the Heat Index from 105 to 110 degrees. Two deaths were reported in Madison County and one in St.
A high pressure ridge at the surface and aloft was anchored across the southern plains into the Lower Mississippi Valley the last week of July into the first week of August.
Afternoon heat index readings ranged from 110 to 115 degrees over much of Middle Tennessee on August 4th.
Very hot conditions resulted in the death of a landscaper in Pearland, TX.
Ambient temperatures around 108 degrees with heat index values around 115 degrees resulted in a heat related fatality in Bossier Parish. A 72 year old man was found in his house deceased.
It was a very warm start to August in 2012 for the Oklahoma City metro. From July 31 through August 4, record high temperatures were broken each day at Oklahoma City. The record numbers ranged from 108 to 113 degrees, with the 113 degrees on August 3 tying the all-time record high temperature for the city.
From the National Weather Service in Norman, Oklahoma.
Very hot and humid conditions persisted throughout the month of August.
South of the Interstate 64 corridor, afternoon heat indices peaked from 105 to 114 degrees on the afternoons of the 4th and 5th. In Benton in Franklin County, a 43-year-old man died after working outdoors in the heat.
One person died in Las Vegas of heat related causes.
A strong, elongated upper level ridge situated across the Desert Southwest and the Southern Plains, leading to well above normal temperatures and excessive heat conditions. The official temperature in Phoenix peaked at 115 degrees during the afternoon on the 4th.
Strong high pressure built in from the east, bringing a period of excessive heat. Seven people died in Las Vegas of heat-related causes during and immediately after the heat wave.
2 on August 4, oldest first.
Moorefield recorded 112°F, West Virginia’s all-time maximum temperature, as the State Climate Extremes Committee lists it (a tie with an earlier value).
Charlotte Amalie (St. Thomas) recorded 99°F, Virgin Islands (U.S.)’s all-time maximum temperature, as the State Climate Extremes Committee lists it (a tie with an earlier value).
44 on August 4, oldest first.
The Dollar Mountain Fire was one of the earliest large scale wildfires in Ferry County, Washington, United States. Starting on August 4, 1929, and burning an estimated 98,000–142,000 acres (400–570 km2) of Colville National Forest land in the Kettle River Range, east of Republic, Washington, the conflagration was contained by mid-September, but only finally extinguished due to weather changes late in the year.
From Wikipedia, CC BY-SA 4.0.
The Folly Farm Fire started on August 4, 1984, in Oregon, and burned 16,890 acres.
The Deadwood Fire started on August 4, 1987, in Idaho, and burned 57,030 acres.
The Paulina Fire started on August 4, 1988, in Oregon, and burned 13,410 acres.
The Thirtymile Fire was discovered on August 4, 1994, in Oregon, and burned 13,800 acres; the cause was recorded as natural.
The E Harker Fire was discovered on August 4, 1994, in Utah, and burned 12,837 acres; the cause was recorded as natural.
The Dry Canyon 2 Fire was discovered on August 4, 1994, in Utah, and burned 10,500 acres; the cause was recorded as natural.
The Verbenia Fire was discovered on August 4, 1995, in California, and burned 23,455 acres; the cause was recorded as equipment and vehicle use.
The North Stansbury Complex (Teddy Bears) Fire was discovered on August 4, 1996, in Utah, and burned 18,540 acres; the cause was recorded as human.
The Logan Fire was discovered on August 4, 1997, in California, and burned 49,490 acres; the cause was recorded as human.
The Unnamed Fire started on August 4, 1998, in Arkansas, and burned 13,922 acres.
The Dun Glenn Complex (Poker Brown) Fire was discovered on August 4, 1999, in Pershing County, Nevada, and burned 231,389 acres; the cause was recorded as natural.
The New Pass Complex (New Pass-Antelope) Fire was discovered on August 4, 1999, in Lander County, Nevada, and burned 139,755 acres; the cause was recorded as natural.
The Sombrero Fire was discovered on August 4, 1999, in Humboldt County, Nevada, and burned 80,448 acres; the cause was recorded as natural.
The Jungo Complex was discovered on August 4, 1999, in Humboldt County, Nevada, and burned 72,179 acres; the cause was recorded as natural.
The Frenchie Fire was discovered on August 4, 1999, in Elko County, Nevada, and burned 54,677 acres; the cause was recorded as natural.
The Dun Glenn Complex (Cosgrave) Fire was discovered on August 4, 1999, in Pershing County, Nevada, and burned 28,918 acres; the cause was recorded as natural.
The Izzenhood Fire was discovered on August 4, 1999, in Elko County, Nevada, and burned 28,593 acres; the cause was recorded as natural.
The Unnamed Fire was discovered on August 4, 1999, in Pershing County, Nevada, and burned 22,063 acres; the cause was recorded as natural.
The Mulecanyon Fire was discovered on August 4, 1999, in Lander County, Nevada, and burned 16,813 acres; the cause was recorded as natural.
The Dun Glenn Complex (Grass Valley 1) Fire was discovered on August 4, 1999, in Pershing County, Nevada, and burned 12,450 acres; the cause was recorded as natural.
The Dun Glenn Complex (The Cyanco) Fire was discovered on August 4, 1999, in Humboldt County, Nevada, and burned 10,619 acres; the cause was recorded as natural.
The Upper Ninemile Complex (Nine Mile) Fire was discovered on August 4, 2000, in Missoula County, Montana, and burned 17,817 acres; the cause was recorded as natural.
The Truckee Fire was discovered on August 4, 2000, in Churchill County, Nevada, and burned 13,348 acres; the cause was recorded as natural.
The Kern Fire was discovered on August 4, 2000, in Malheur County, Oregon, and burned 12,069 acres; the cause was recorded as natural.
The Clear Creek Divide Complex (Clear Creek) Fire was discovered on August 4, 2000, in Montana, and burned 12,000 acres; the cause was recorded as natural.
The Milepost 85 Fire was discovered on August 4, 2002, in Alaska, and burned 21,575 acres; the cause was recorded as equipment and vehicle use.
The Barber County Fire was discovered on August 4, 2008, in Barber County, Kansas, and burned 38,400 acres; the cause was recorded as human.
The Windmill Fire was discovered on August 4, 2011, in Elmore County, Idaho, and burned 17,382 acres; the cause was recorded as natural.
The Double A Fire was discovered on August 4, 2011, in Lincoln County, Idaho, and burned 13,131 acres; the cause was recorded as natural.
The Del Fire was discovered on August 4, 2012, in Lincoln County, Nevada, and burned 23,680 acres; the cause was recorded as natural.
The Somers Fire was reported on August 4, 2014, in Wallowa County, Oregon, and burned 36,185 acres; the cause was recorded as natural.
The Highway 8 Fire was reported on August 4, 2015, in Klickitat County, Washington, and burned 33,100 acres; the cause was recorded as human.
The Powerline Fire was reported on August 4, 2017, in Power County, Idaho, and burned 55,529 acres.
The Mammoth Cave Fire was reported on August 4, 2017, in Lincoln County, Idaho, and burned 49,912 acres; the cause was recorded as human.
The Maple Fire was a wildfire on Jefferson Ridge in the Olympic Mountains, approximately 23 miles north of Shelton, Washington in the United States. The fire was caused by illegal logging activities, and the resulting criminal trial was the first time that tree DNA has ever been used in a federal trial in the United States.
From Wikipedia, CC BY-SA 4.0.
The Coal Hollow Fire was reported on August 4, 2018, in Utah County, Utah, and burned 31,661 acres; the cause was recorded as natural.
The Corta Fire was reported on August 4, 2019, in Elko County, Nevada, and burned 16,526 acres; the cause was recorded as natural.
The Schneider Springs Fire was reported on August 4, 2021, in Yakima County, Washington, and burned 107,322 acres; the cause was recorded as natural.
The Muckamuck Fire was reported on August 4, 2021, in Okanogan County, Washington, and burned 13,297 acres; the cause was recorded as natural.
The Red Fire was a wildfire that burned in Yosemite National Park, Mariposa County, during California's wildfire season in 2022. Lightning started the fire, which was then discovered on August 4.
From Wikipedia, CC BY-SA 4.0.
Fire started from farm equipment working and field and quickly spread in the dry grasses by 25 MPH winds.
The Busman Road Fire was reported on August 4, 2022, in Treasure County, Montana, and burned 12,886 acres.
The Frijoles Fire was reported on August 4, 2026, in Santa Fe County, New Mexico, and burned 15,956 acres; the cause was recorded as natural.
14 on August 4, oldest first.
An earthquake struck Jiangsu Province, China.
An earthquake struck Shaanxi,gansu,and Shanxi Provinces, China. It killed very many people (over 1,000) and did severe (about $5 to $25 million) damage.
An earthquake struck Ava (Innwa), Mynamar (Burma), Myanmar. It caused a tsunami.
A magnitude 7.5 earthquake struck Coast, Honduras. It killed many people (about 101 to 1,000) and did severe (about $5 to $25 million) damage. It caused a tsunami.
A magnitude 6.9 earthquake struck Brazil, French Guiana, Suriname, Guyana.
A magnitude 7.5 earthquake struck Xinjiang Weiwuer Zizhiqu Province(Sinkiang), China. It killed 1 person.
An earthquake struck Xiaosi, Dandong, Liaoning Province, China. It caused a tsunami.
A magnitude 7.9 earthquake struck Northeastern Coast, Dominican Republic. With the tsunami it caused, it killed 1,790 people and did severe (about $5 to $25 million) damage.
The 1946 Dominican Republic earthquake occurred on August 4 at 13:51 AST near Samaná, Dominican Republic. It was the largest earthquake to occur in the instrumental era in the Caribbean.
From Wikipedia, CC BY-SA 4.0.
A magnitude 7.2 earthquake struck Bahia DE Caraquez, Canoa, Ecuador. It killed 3 people and injured 40.
2. The epicenter was located at 10 km north of Bahía de Caráquez, about 190 km NNW of Guayaquil, and about 215 km W of Quito, Ecuador.
From Wikipedia, CC BY-SA 4.0.
A magnitude 6.8 earthquake struck Sakhalin Island, Uglegorsk, Makarov, Russia. It injured 8 and did $920,000 in damage.
A magnitude 7.6 earthquake struck Laurie Is, South Orkney Islands, Scotia Sea, Antarctica. It caused a tsunami.
A magnitude 5.6 earthquake struck Bodrum, Turkey. It injured 15.
5 on August 4, oldest first.
Merapi, Indonesia erupted with a Volcanic Explosivity Index of 3. It killed 3,000 people.
Bardarbunga, Iceland erupted with a Volcanic Explosivity Index of 3.
Savaii, Samoa erupted with a Volcanic Explosivity Index of 2. It did severe (about $5 to $25 million) damage. The eruption caused a tsunami.
Alayta, Ethiopia erupted with a Volcanic Explosivity Index of 2. It killed few people (about 1 to 50).
Paluweh, Indonesia erupted with a Volcanic Explosivity Index of 3. It killed 226 people and injured 200. The eruption caused a tsunami.
7 on August 4, oldest first.
A tsunami with a source recorded as earthquake struck Ava (Innwa), Myanmar.
A tsunami with a source recorded as earthquake and landslide struck Bay of Honduras, with a maximum water height of 5 meters. It killed many people (about 101 to 1,000) and did severe (about $5 to $25 million) damage.
A tsunami with a source recorded as volcano struck Matavanu Volcano, Samoa. It did severe (about $5 to $25 million) damage.
A tsunami with a source recorded as earthquake struck Xiaosi, Dandong, Liaoning, China.
A tsunami with a source recorded as volcano and landslide struck Flores Sea, Indonesia, with a maximum water height of 10 meters. It killed 226 people and injured 200.
A tsunami caused by a magnitude 7.9 earthquake struck Northeastern Coast, Dominican Republic, with a maximum water height of 5 meters. It killed 1,790 people and did severe (about $5 to $25 million) damage.
A tsunami caused by a magnitude 7.6 earthquake struck Scotia Sea, Antarctica.
4 on August 4, oldest first.
A G4 (severe) geomagnetic storm began August 4, 1941, reached Kp 8+ and lasted 27 hours, with a daily Ap as high as 110; at that Kp the aurora may be seen from about 43 degrees geomagnetic latitude.
A G3 (strong) geomagnetic storm began August 4, 1949, reached Kp 7- and lasted 21 hours, with a daily Ap as high as 64; at that Kp the aurora may be seen from about 52 degrees geomagnetic latitude.
A G5 (extreme) geomagnetic storm began August 4, 1972, reached Kp 9 and lasted 69 hours, with a daily Ap as high as 182; at that Kp the aurora may be seen from about 40 degrees geomagnetic latitude.
A G3 (strong) geomagnetic storm began August 4, 2024, reached Kp 7 and lasted 6 hours, with a daily Ap as high as 49; at that Kp the aurora may be seen from about 50 degrees geomagnetic latitude.
8 on August 4, oldest first.
A 54 year old Louisiana man died after he and his two grandchildren were pulled from rough surf at Perdido State Park. The surf was churned up by an area of low pressure moving across the Gulf that later became Tropical Storm Bertha.
A 50 year old male visitor from Louisiana drowned in rough surf in Orange Beach from Tropical Storm Edouard. He was swimming with family members when he disappeared.
Lightning struck Mohave Point on the South Rim of the Grand Canyon. One park visitor was killed and five others were injured.
Wave action produced by onshore winds of 15 to 20 mph contributed to rip current development on Lake Michigan.
Three people wading in the water near the north jetty in Tillamook were swept out to sea by a sneaker wave. Two of the people made it to shore safely, but one did not.
A 59-year-old woman from New Hampshire died on August 9th from her injuries suffered at an unguarded Atlantic City (Atlantic County) beach after she was caught in a rip current on the evening of August 4th.
Thunderstorms rolled across southeast Minnesota during the afternoon of August 4th. A lightning strike from one of these storms hit a transformer in La Crescent (Houston County).
A male drown from a rip current in Ocean City. Several others swimming in the group had to be rescued.
Gathered from this site’s archives: the tornado record (NOAA SPC, and Grazulis before 1950), IBTrACS and the National Hurricane Center, NOAA NCEI’s Storm Events Database, Regional Snowfall Index, billion-dollar disasters list, State Climate Extremes Committee and hazard databases, USGS, NIFC, GFZ Potsdam’s Kp index (CC BY 4.0), the National Weather Service in Norman, Oklahoma, and Wikidata (CC0), with article leads from Wikipedia under CC BY-SA 4.0, each credited where it appears. Rebuilt 2026-09-24.