Every tornado, hurricane, flood, blizzard, heat wave, record, earthquake, eruption, tsunami, wildfire and geomagnetic storm on record for August 9, 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.
Earthquakes
The 1912 Mürefte earthquake occurred at 03:29 local time on 9 August. 4 Mw and a maximum intensity of X (Extreme) on the Modified Mercalli intensity scale, causing from 216 to 3,000 casualties.
From Wikipedia, CC BY-SA 4.0.
Earthquakes
A magnitude 7.2 earthquake struck Marmara Sea, Turkey. It killed 2,800 people, injured 7,000, destroyed 24,700 houses and did extreme (about $25 million or more) damage. It caused a tsunami.
Tsunamis
A tsunami with a source recorded as earthquake and landslide struck Marmara Sea, Turkey, with a maximum water height of 2.7 meters. It killed 2,800 people, injured 7,000, destroyed 24,700 houses and did extreme (about $25 million or more) damage.
Tornadoes
An F4 tornado touched down in South Central Connecticut Planning Region, Lower Connecticut River Valley Planning Region counties, Connecticut and tracked 11 miles, 300 yards wide at its widest, killing 34 and injuring 70. From Grazulis's record of significant tornadoes: Wallingford/Durham/Killingsworth, CT.
Earthquakes
A magnitude 6.8 earthquake struck Jiayi, Tainan, Taiwan. It killed 252 people, injured 432, destroyed 14,889 houses and did severe (about $5 to $25 million) damage. It caused a tsunami.
Tsunamis
A tsunami caused by a magnitude 6 earthquake struck Tainan, Taiwan, with a maximum water height of 10 meters. It killed 252 people, injured 432, destroyed 14,889 houses and did severe (about $5 to $25 million) damage.
Tornadoes
An F3 tornado touched down in Hamilton, Clermont counties, Ohio and tracked 22.2 miles, 400 yards wide at its widest, killing 4 and injuring 247.
Hurricanes and tropical storms
Hurricane Saomai reached its peak of 140 kt (160 mph) with a central pressure of 898 mb, a category 5 storm.
Earthquakes
A magnitude 8.2 earthquake struck Off Northeast Coast Honshu, Japan. It killed 18 people and destroyed 8 houses. It caused a tsunami.
Tsunamis
A tsunami caused by a magnitude 7.4 earthquake struck Off Northeast Coast Honshu, Japan, with a maximum water height of 0.25 meters. It killed 18 people and destroyed 8 houses.
Heat and drought
An upper level ridge shifted into the Interior Mountain West from the eastern Pacific during the period between the 9-14th, keeping temperatures above normal during this time.
Floods
A historic flash flood and record rainfall occurred over portions of the Milwaukee Metropolitan Area and Southeast WI resulting in damages in the $100s Millions.
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An F4 tornado touched down in South Central Connecticut Planning Region, Lower Connecticut River Valley Planning Region counties, Connecticut and tracked 11 miles, 300 yards wide at its widest, killing 34 and injuring 70. From Grazulis's record of significant tornadoes: Wallingford/Durham/Killingsworth, CT.
The Wallingford tornado was a violent tornado that struck the town of Wallingford, Connecticut, on Friday, August 9, 1878. The tornado, unofficially rated F4 by tornado expert Thomas P.
From Wikipedia, CC BY-SA 4.0.
An F3 tornado touched down in Hamilton, Clermont counties, Ohio and tracked 22.2 miles, 400 yards wide at its widest, killing 4 and injuring 247.
An F3 tornado touched down in Marion County, Indiana and tracked 0.1 miles, 167 yards wide at its widest, injuring 6.
An F1 tornado touched down in Norfolk County, Massachusetts and tracked 4.9 miles, 30 yards wide at its widest, killing 1 and injuring 6.
An F2 tornado touched down in Calumet County, Wisconsin and tracked 0.1 miles, 10 yards wide at its widest, killing 1.
Several large trees were blown down by strong winds.
An F0 tornado touched down in Koochiching County, Minnesota and tracked 1.2 miles, 200 yards wide at its widest, killing 2.
Thunderstorms rolled through Bremer County. High winds were reported at Sumner, causing numerous trees in the city. Further details will be included in the narrative below.
A cluster of severe thunderstorms produced three tornados over north-central Wisconsin. In Price county one tornado damaged some trees 6 miles southeast of Fifield. A second Price County tornado ripped a roof off a barn and leveled some trees 9 miles east of Phillips.
Estimated winds. Roof partially off barn. Large branches down.
An unstable airmass was in place over Iowa during the afternoon and evening hours of the 9th. Satellite and sounding data suggested the atmosphere was capped at about 775 mb by a warm layer of air with temperatures as high as 18 C. or more.
Two clusters of thunderstorms caused significant damage on the 9th. During the morning hours, a large bow echo raced across the area causing widespread wind damage.
The second round of tall thunderstorms moved through during the evening hours, spawning a few tornadoes. The lightning activity peaked around 2000E with around 200 strikes per minute in the Huntington to Charleston region. Approximately 75,000 customers were without electricity.
A cold front moved across the region on the evening of the 9th. Thunderstorms that developed ahead and along the front produced winds in excess of 55 MPH, hail, frequent lightning, and isolated tornadoes. In Highland County, trees were downed in Monterey and across the county.
Numerous locations had trees or large branches blown down. Sheriff reported over 20 roads blocked by debris. A house and a mobile home were damaged by fallen trees in the Plains vicinity.
An F2 tornado touched down in the town of Cornville in Somerset County downing numerous trees and damaging or destroying several buildings. The tornado touched down just after 7 pm in a wooded area just west of East Ridge Road.
Thunderstorm winds caused damage to trees and power lines.
A frontal boundary was oriented west to east across central Ohio. The surface frontal boundary, in combination with upper level atmospheric support, allowed for severe thunderstorms to develop across the region.
Three separate mesoscale convective systems moved across Southeast Ohio, Western Pennsylvania, Northern West Virginia, and Garrett county Maryland. Widespread wind damage, flash flooding, and an EF0 tornado occurred during the event.
A massive convective complex moving south across the region produced a tornado in Allegany county. The initial touchdown occurred in the northwest corner of New Hudson near White Meeting House Road. Final touchdown occurred on Jackson Hill in Cuba.
Deep moisture and instability over eastern New Mexico combined with northwest flow aloft to produce scattered strong to severe thunderstorms over the east-central and northeast plains.
A surface cold front combined with afternoon instability to spark scattered, fast moving thunderstorms in Virginia, particularly in the New River Valley. Several reports of severe thunderstorm wind damage occurred, as well as brief tornado in Pulaski County.
Increasing moisture and instability ahead of cold front approaching from the Northern Plains aided the development of strong to severe thunderstorms over portions of western Upper Michigan from the afternoon of the 9th into the morning of the 10th.
Thunderstorms developed along a cold front as it moved into an area of strong instability and enhanced low level vorticity over the southern James River Valley.
Severe thunderstorms formed during the late afternoon and early evening, extending into the overnight period. Damaging wind gusts, large hail, and tornadoes were all reported through the course of the event.
A weakening line of showers and thunderstorms produced hail across portions of central Wisconsin during the morning on Saturday (8/09).
Several thunderstorms developed in northeast Missouri during the late afternoon of August 9th. These thunderstorms congealed into a single, discrete cell just before moving into Knox and Shelby Counties. As the cell pushed east, it produced two tornadoes and minor wind damage.
3 on August 9, oldest first.
Hurricane Arlene crossed the coast as a category 2 hurricane, 95 kt (110 mph), central pressure 975 mb. The 1963 Atlantic hurricane season was a catastrophic yet average season in terms of tropical cyclone formation, with a total of ten nameable storms. The season officially began on June 15, 1963, and lasted until November 15, 1963.
From Wikipedia, CC BY-SA 4.0.
Hurricane Saomai reached its peak of 140 kt (160 mph) with a central pressure of 898 mb, a category 5 storm.
Hurricane Ernesto crossed the coast near Fraccionamiento Ciudad Olmeca, Veracruz, Mexico as a tropical storm, 55 kt, central pressure 989 mb. It killed 12 people in all. Hurricane Ernesto was a Category 2 hurricane and a damaging tropical cyclone that affected several Caribbean Islands and areas of Central America during August 2012. The fifth named storm and second hurricane of the 2012 Atlantic hurricane season, Ernesto originated from a tropical wave that emerged off the west coast of Africa in late July.
From Wikipedia, CC BY-SA 4.0.
23 on August 9, oldest first.
Severe thunderstorms with very heavy rain began over central Mohave County around 12:30 am and ended around 2:30 am MST. Washes rapidly filled in the vicinity of Kingman and several roads were washed out.
Thunderstorm winds gusting to 79 mph were measured at Davis Monthan AFB. These winds blew down a tree across the road on Kolb east of Tanque Verde.
Numerous thunderstorms crossed the western southern tier and genesee valley during the evening hours. The thunderstorm winds downed trees and power lines. Thousands were without electricity.
A small area of brief heavy rains of 4 to 6 inches in one hour caused a flash flood in Bradenton between 27th Street and 75th Street. An unidentified man, possibly homeless, misjudged the flooded 18th Avenue Drive West and rode his bicycle into the turbulent waters.
Strong thunderstorms developed in a very moist atmosphere, dropping three to five inches of rain in a short amount of time onto already saturated ground. The heavy rains produced flash flooding over parts of the southern tier and Finger Lakes.
Heavy rains from widespread thunderstorms caused flash flood waters to over-flow washes from New River east to the Seven Springs area and Camp Creek. Rainfall runoff was higher than normal in the Cave Creek Complex area and contributed significantly to the rapid flooding.
Three separate mesoscale convective systems moved across Southeast Ohio, Western Pennsylvania, Northern West Virginia, and Garrett county Maryland. Widespread wind damage, flash flooding, and an EF0 tornado occurred during the event.
A massive convective complex moved from lower Michigan across southern Ontario near Toronto then dove southeast across the Niagara Frontier and Western Southern Tier. This followed an earlier round of strong thunderstorms and heavy rains earlier in the day.
Five to eight inches of rain falling within a 30 hour period lead to widespread flooding across southern Lapeer county. A few reported rainfall totals include: 7.4 inches in Almont, 6.3 inches in Imlay City, and 5.65 inches in Lapeer.
Three rounds of thunderstorms produced wind damage and flash flooding during the afternoon, evening, and overnight hours of August 9th.
The very wet weather pattern of June and July continued into the first two weeks of August. Central Iowa was hardest hit by rainfall with three consecutive nights of torrential rains on the 8th, 9th and 10th.
An unstable airmass remained in place over Iowa. CAPE values were in the 3000 to 5000 J/kg range with lifted indices in the -5 to -10 C range. A frontal boundary shifted south during the late afternoon and evening.
Very heavy rainfall of around 1.5 inches (with rainfall rates up to 5 inches per hour) occurred across the Waldo and Williams Canyon watersheds, producing flooding on US Highway 24 and in Manitou Springs. Flash flooding occurred from Cascade to Waldo Canyon along US Highway 24.
Severe storms moved from western into central Oklahoma during the evening of the 8th and continued into the early morning hours of the 9th back in 2013. The storms stalled over central parts of the state, causing flash flooding over western parts of the OKC metro. One man drowned when he tried to save his daughter from getting swept away in her car. His daughter made it safely out of the flood waters.
From the National Weather Service in Norman, Oklahoma.
A backdoor cold front moving from the northeast toward the southwest caused numerous thunderstorms and heavy rain showers to suddenly erupt as it moved across northern portions of Upstate South Carolina during the evening.
The combination of a strong upper disturbance and a weak surface front brought strong thunderstorms to the region. These storms produced a mix of thunderstorm wind damage and some isolated reports of flash flooding.
Scattered thunderstorms developed across central South Dakota during the late afternoon hours and moved southeast into an environment of deep mixed-layer instability and effective shear of around 50 knots in the evening.
Moist southeast flow fueled thunderstorms over southern Nevada. Several storms produced severe weather, and a few produced flash flooding.
A deep plume of tropical moisture had spread over Central New York ahead of the remnants of Tropical Storm Debby. Prolonged torrential rains blanketed the region during the night and early morning hours before becoming enhanced by the approaching tropical remnants.
The remnants of TS Debby tracked through St. Lawrence County during the afternoon/early evening of August 9, 2024. This produced a 50-75 mile swath of excessive rainfall from 3 to 7 inches which led to widespread flash flooding.
A deep plume of tropical moisture had spread over Northeast Pennsylvania ahead of the remnants of Tropical Storm Debby. Prolonged torrential rains blanketed the region during the night and early morning hours before becoming enhanced by the approaching tropical remnants.
A historic flash flood and record rainfall occurred over portions of the Milwaukee Metropolitan Area and Southeast WI resulting in damages in the $100s Millions.
A powerful thunderstorm, characterized by a broad swath of destructive winds, swept across eastern Nebraska and western Iowa on the morning of August 9, 2025. The event was responsible for one fatality and seven injuries, as well as widespread property and tree damage.
38 on August 9, oldest first.
A severe thunderstorm with extremely strong winds struck Stillwater the night of August 9, 1963. At the Stillwater Municipal Airport, wind speeds were measured between 92 and 115 mph for eight consecutive minutes, with a peak gust reaching 138 mph. The storm did an incredible amount of damage, especially to the Oklahoma State University campus. Winds caused widespread roof and tree damage, and broke windows out of about 130 automobiles.
From the National Weather Service in Norman, Oklahoma.
Roofs blown off, trees uprooted, and power interrupted to some 20,000 customers. Power poles were snapped by high winds on the west side of the city. Winds reached as high as 60 mph at the National Weather Service in Tucson.
Two 6-8 inch diameter trees down.
Pine trees blown over. Estimated windspeed.
Summary of events for August 9 1998:Numerous thunderstorms developed over eastern Oklahoma on Sunday morning, August 9, in response to the lift provided by a north-south warm front and an upper level low over southeast Missouri.
Hail ranging in size from dimes to tennis balls caused considerable damage. Hardest hit was the city of Rochester, where damage to vehicles and homes was estimated in the millions.
Trees and power lines were reported down across much of North Central and East Central Kentucky.
Thunderstorms developed along a stalled boundary across eastern New York late on August 9. Aided by a very humid, unstable airmass and a strong disturbance aloft, some of these became severe. A lone thunderstorm produced dime-sized hail at Summit, Schoharie county.
The first of 2 rounds of tall thunderstorms moved rapidly east during the midday hours. The environment had surface dew points in the 70s. Wind damage was the most significant across Webster County.
This midday event was the first of 2 rounds of tall thunderstorms that affected southeast Ohio on the 9th. The high heat and humidity created a very volatile atmosphere.
Numerous downed trees on power lines, vehicles, houses and city streets. Power outages affected 15,000 customers. A woman was injured when a tree fell on her house. A couple suffered minor injuries when a tree fell on their vehicle.
A line of strong thunderstorms moved southeast from Wisconsin into Northern Illinois during the evening hours of Thursday, August 9th.
A lake breeze front off Lake Ontario, interacted with a hot and humid air mass, to trigger a thunderstorm cluster in western New York during the late afternoon of August 9. As the thunderstorm complex reached the Mohawk Valley, it evolved into a supercell.
A 2 inch diameter metal flagpole was bent over by the wind.
A severe thunderstorm complex formed over Cherry County during the afternoon and moved eastward across much of north central Nebraska during the evening hours. Numerous events of golf-ball sized hail and wind gusts over 60 mph were reported during this event.
Isolated severe thunderstorms occurred across southeast Oklahoma during the late afternoon and early evening hours.
A very warm, moist, and unstable airmass was in place over Iowa from 8th into the 9th. Surface temperatures on the 8th warmed into the upper 80s and 90s, with dew point readings in the 70s.
Severe thunderstorms developed across west central lower Michigan ahead of a cold front during the late afternoon hours of August 9th. A particularly severe thunderstorm complex moved onshore between Muskegon and Grand Haven at P.J. Hoffmaster State Park 6:25 pm.
A cold front stretching across the upper Midwest, coupled with warm moist air streaming northward across the area, brought scattered showers and isolated thunderstorms to portions of east central Iowa and northern Illinois during the midday hours August 9.
A series of supercell thunderstorms moved southeast during the afternoon and evening hours, resulting in significant wind and hail damage. Hail up to the size of golf balls and wind gusts over 60 mph produced damage to vehicles, crops and buildings in the area.
An upper level system moved across the Great Lakes, accompanied by a 100 knot upper level jet streak. Mixed layer CAPE on the order of 1500 to 2500 j/kg combined with modest shear and several convergent zones to allow for scattered thunderstorm development.
This early Tuesday evening featured the most noteworthy hail event of 2011 within this six-county area of North Central Kansas, as a pair of outflow-dominant supercells tracked southeast through portions of western Phillips, Rooks and Osborne Counties, producing hail up to…
A ridge of high pressure aloft, which had brought unusually hot weather to Arkansas, shifted to the west of the state. This allowed colder air aloft to move into the state from the northwest, periodically triggering thunderstorms from the 9th through the 13th.
Thunderstorms developed over western Nebraska in the late morning and early afternoon hours on Tuesday, August 9th on the north side of a stationary surface front.
Severe thunderstorms moved across the eastern Oklahoma Panhandle during the evening hours producing large hail and damaging thunderstorm wind gusts. There were no reports of injuries or fatalities.
An upper level disturbance and associated weak cold front interacting with an unstable and highly sheared air mass resulted in a couple rounds of strong to severe thunderstorms rolling southeast from the evening hours on the 9th through the predawn hours on the 10th across…
A vigorous upper-level disturbance interacting with an approaching cold front triggered scattered severe thunderstorms across north-central Illinois during the afternoon and early evening of August 9th.
A mid-level low was deepening over the Great Lakes, with a series of shortwaves rotating around it. One wave moved through on August 9th, and several showers and thunderstorms developed as a result. Several lightning strikes resulted in house fires across the area.
For the second consecutive night, widespread thunderstorm activity blossomed across most all of the 24-county South Central Nebraska area on this Saturday, although just like the previous night all severe-criteria hail and wind reports emanated from counties along and west of…
Primarily between 7 pm-1 am CDT on this Saturday evening, much of this six-county North Central Kansas area observed widespread thunderstorm activity.
A dry lower atmosphere in place over southwest New Mexico lead to gusty winds exceeding 70 mph from thunderstorms. These winds created a localized dust storm just west of Lordsburg that lead to an accident in which a woman was killed.
During the evening of Sunday, August 9th, a storm developed in Carver County, west of the NWS office. Several more storms developed and trained over the same areas that affected eastern Carver, far northern Scott, and southern Hennepin Counties for an hour.
Thunderstorms developed along a surface trough over north-central North Dakota into the James River Valley region. Some of these storms produced very large hail in an environment of elevated instability and strong deep layer shear.
Hold.
The remnants of Hurricane Debby moved across western and northern NY during the afternoon and eventually across northwest VT during the early evening hours of August 9th. The heaviest rainfall associated with this storm was across northern NY with more than 6 inches of rain.
For a few areas, this was the second night in a row of strong to severe thunderstorms wind gusts as a complex of thunderstorms moved across far southern Nebraska and north central Kansas.
A frontal boundary draped from southeast Nebraska to central Kansas became the focal point for an eventual high wind event that stretched across several counties.
15 on August 9, oldest first.
A 74-year old man was found dead in his Wichita Falls home. The State Medical Examiner determined hypothermia contributed to his death along with high blood pressure and heart disease.
A man died of heat exposure in his home.
Excessive heat and humidity again plagued northwest Missouri on August 9th. Afternoon heat indices ranged from 105 to 110 degrees. A 64 year old male died from the heat in Kansas City.
Male died of heat exposure while playing golf.
A strong upper level ridge of high pressure redeveloped over the Southern Plains and combined with a humid air mass to produce another period of excessive heat over eastern Oklahoma.
A strong upper level ridge of high pressure redeveloped over the Southern Plains and combined with a humid air mass to produce another period of excessive heat over northwestern Arkansas.
Two fatalities resulted from this heat wave in Morgan County, Alabama.
High temperatures reached the lower 90s on August 9th and the middle 80s on August 10th. A 54 year old man suffered a heat stroke in Chicago and died.
A strong and very persistent high in the upper levels of the atmosphere was responsible for seven consecutive days of heat indices at or above 105 degrees.
A strong and very persistent high in the upper levels of the atmosphere was responsible for seven consecutive days of heat indices at or above 105 degrees.
Persistent high pressure over South Central Texas led to record high temperatures during an August heat wave.
Strong high pressure over the region allowed for temperatures to climb above 110 degrees on the 9th and 10th, promoting excessive heat conditions. According to the Maricopa County Department of Public Health, 5 heat-associated fatalities occurred during this event.
Twin 3-year-old boys went missing the afternoon of Monday the 9th in to city of Hibbing. Police were dispatched around 5:30PM to search for the boys who were found an hour later in a locked vehicle near their residence.
An upper level ridge shifted into the Interior Mountain West from the eastern Pacific during the period between the 9-14th, keeping temperatures above normal during this time.
Temperatures in Southeastern Arizona were near 2 to 6 degrees above normal with Moderate HeatRisk. The Pima County Medical Examiner found that heat was a factor in the cause of death for 14 individuals.
2 on August 9, oldest first.
Perryville recorded 113°F, Tennessee’s all-time maximum temperature, as the State Climate Extremes Committee lists it (a tie with an earlier value).
James Madison HS/NW Milwaukee recorded 14.55 inches, Wisconsin’s all-time greatest 24-hour precipitation, over August 9, 2025 to August 10, 2025, as the State Climate Extremes Committee lists it.
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The Rabbit 2 Fire started on August 9, 1984, in Oregon, and burned 35,420 acres.
The Coyote Fire started on August 9, 1984, in Oregon, and burned 13,572 acres.
The Buffalo Fire started on August 9, 1984, in Oregon, and burned 8,532 acres.
The Abert Fire started on August 9, 1984, in Oregon, and burned 8,046 acres.
The Canyon Creek Fire started on August 9, 1988, in Montana, and burned 35,835 acres.
The Finley Fire started on August 9, 1990, in California, and burned 22,228 acres.
The Unnamed Fire started on August 9, 1994, in Oregon, and burned 7,655 acres.
The Unnamed Fire started on August 9, 1994, in Oregon, and burned 6,627 acres.
The Sheep Fire was discovered on August 9, 2001, in Elko County, Nevada, and burned 83,723 acres; the cause was recorded as natural.
The Observation Fire was discovered on August 9, 2001, in Lassen County, California, and burned 67,792 acres; the cause was recorded as natural.
The Jackies Butte Fire was discovered on August 9, 2001, in Malheur County, Oregon, and burned 67,052 acres; the cause was recorded as natural.
The Sheepshead Fire was discovered on August 9, 2001, in Harney County, Oregon, and burned 41,124 acres; the cause was recorded as natural.
The Blue Complex (Blue) Fire was discovered on August 9, 2001, in California, and burned 34,319 acres; the cause was recorded as natural.
The Fish Fire was discovered on August 9, 2001, in Washoe County, Nevada, and burned 22,674 acres; the cause was recorded as natural.
The Murphy Fire was discovered on August 9, 2001, in Elko County, Nevada, and burned 7,510 acres; the cause was recorded as natural.
The Mineral-Primm (Mineral and Primm) Fire was discovered on August 9, 2003, in Missoula County, Montana, and burned 25,202 acres; the cause was recorded as natural.
The Sapp (Sapp) Fire was discovered on August 9, 2003, in Idaho, and burned 9,674 acres; the cause was recorded as natural.
The Little Horn II Fire was discovered on August 9, 2003, in Wyoming, and burned 7,400 acres; the cause was recorded as natural.
The Chitanatala Mountains Fire was discovered on August 9, 2005, in Alaska, and burned 35,650 acres; the cause was recorded as natural.
The Tryon Complex (Cherry Creek) Fire was discovered on August 9, 2005, in Oregon, and burned 18,177 acres; the cause was recorded as natural.
The Signal Rock Fire was discovered on August 9, 2005, in Ravalli County, Montana, and burned 13,327 acres; the cause was recorded as natural.
The Burnt Strip Mountain Fire was discovered on August 9, 2005, in Idaho, and burned 8,580 acres; the cause was recorded as natural.
The Mcclane Fire was discovered on August 9, 2005, in Washington, and burned 6,851 acres; the cause was recorded as debris and open burning.
The Wh Complex (Wicked Creek) Fire was discovered on August 9, 2007, in Park County, Montana, and burned 26,600 acres; the cause was recorded as natural.
The Rat Creek Fire was discovered on August 9, 2007, in Beaverhead County, Montana, and burned 25,877 acres; the cause was recorded as natural.
The Columbine 1 Fire was discovered on August 9, 2007, in Park County, Wyoming, and burned 18,595 acres; the cause was recorded as natural.
The Alpine Lake Fire was discovered on August 9, 2012, in Fremont County, Wyoming, and burned 45,877 acres; the cause was recorded as natural.
The Merino Fire was discovered on August 9, 2012, in Custer County, Idaho, and burned 7,863 acres; the cause was recorded as natural.
The Cain Fire was discovered on August 9, 2012, in Pershing County, Nevada, and burned 7,403 acres; the cause was recorded as natural.
The Beaver Creek wildfire began with a lightning strike on August 9th northwest of Hailey. Some evacuations of Deer Creek west of the Big Wood River were ordered on the 15th. The East Fork of the Wood River between Ketchum and Sun Valley was evacuated on the 16th.
The Timber Butte Fire was reported on August 9, 2014, in Boise County, Idaho, and burned 6,796 acres.
The Jerusalem Fire was reported on August 9, 2015, in Lake County, California, and burned 25,118 acres.
The Thompson Fire was reported on August 9, 2015, in Flathead County, Montana, and burned 18,847 acres; the cause was recorded as human.
The Dillinger Fire was reported on August 9, 2015, in Idaho County, Idaho, and burned 7,500 acres; the cause was recorded as natural.
The Briggs Fire was reported on August 9, 2016, in Beaver County, Utah, and burned 8,883 acres; the cause was recorded as natural.
The Horse Creek Ranch Fire was reported on August 9, 2016, in Concho County, Texas, and burned 6,623 acres; the cause was recorded as human.
The Hirz Fire was reported on August 9, 2018, in Shasta County, California, and burned 40,580 acres.
The Cow Fire was reported on August 9, 2019, in Baker County, Oregon, and burned 9,668 acres; the cause was recorded as natural.
The Boise Fire was reported on August 9, 2024, in Humboldt County, California, and burned 12,929 acres.
On 9 August 2026, a van fire broke out on the A31 dual-carriageway near Ringwood, Hampshire, in the New Forest National Park. The van fire spread from the vehicle onto the central reservation before progressing on nearby heathland.
From Wikipedia, CC BY-SA 4.0.
The Weiser Knoll Fire was reported on August 9, 2026, in Fremont County, Wyoming, and burned 15,817 acres.
The Austin Fire was reported on August 9, 2026, in Clackamas County, Oregon, and burned 12,884 acres; the cause was recorded as human.
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A magnitude 6 earthquake struck Tonghai, Qujiang, Yunnan Province, China. It killed some people (about 51 to 100).
A magnitude 6.8 earthquake struck Jiayi, Tainan, Taiwan. It killed 252 people, injured 432, destroyed 14,889 houses and did severe (about $5 to $25 million) damage. It caused a tsunami.
An earthquake struck Kamchatka, Russia. It caused a tsunami.
A magnitude 5.7 earthquake struck Shemakha (Semacha), Azerbaijan. It did severe (about $5 to $25 million) damage.
A magnitude 6.5 earthquake struck Acapulco, Mexico. It caused a tsunami.
An earthquake struck Coquimbo, Chile. It caused a tsunami.
A magnitude 8.2 earthquake struck Off Northeast Coast Honshu, Japan. It killed 18 people and destroyed 8 houses. It caused a tsunami.
A magnitude 7.9 earthquake struck Off Northeast Coast Honshu, Japan. It caused a tsunami.
A magnitude 7.9 earthquake struck Loyalty Islands, New Caledonia. With the tsunami it caused, it killed few people (about 1 to 50).
A magnitude 6.3 earthquake struck Off Northeast Coast Honshu, Japan. It caused a tsunami.
2 Mw. It was felt throughout the North Island and upper South Island, with many communities within a 500 kilometres (310 mi) radius reporting noticeable ground shaking.
From Wikipedia, CC BY-SA 4.0.
The 1912 Mürefte earthquake occurred at 03:29 local time on 9 August. 4 Mw and a maximum intensity of X (Extreme) on the Modified Mercalli intensity scale, causing from 216 to 3,000 casualties.
From Wikipedia, CC BY-SA 4.0.
A magnitude 7.2 earthquake struck Marmara Sea, Turkey. It killed 2,800 people, injured 7,000, destroyed 24,700 houses and did extreme (about $25 million or more) damage. It caused a tsunami.
A magnitude 6.3 earthquake struck Ithaki, Cephalonia, Lefkada, Ionian Islands, Greece. It did extreme (about $25 million or more) damage. It caused a tsunami.
A magnitude 5.3 earthquake struck Babol-Kenar, Iran. It killed 1 person.
A magnitude 6.4 earthquake struck Izabel Province, Honduras, N Guatemala. It killed 2 people.
The 1980 Honduras earthquake struck just offshore Honduras on August 9 at 05:45 UTC. Two people were killed and many injured.
From Wikipedia, CC BY-SA 4.0.
A magnitude 4.7 earthquake struck Cartago, Costa Rica.
A magnitude 5.8 earthquake struck Antabama, Peru. It killed 4 people and injured 15.
A magnitude 5.1 earthquake struck Firuzabad, Iran.
A magnitude 5 earthquake struck Baoshan, Yunnan Province, China. It injured 3 and did severe (about $5 to $25 million) damage.
A magnitude 4.5 earthquake struck Alegria, El Salvador. It injured 4.
6 and depth 11 kilometres. 89°E.
From Wikipedia, CC BY-SA 4.0.
A magnitude 5.9 earthquake struck Lombok Island, Indonesia. It killed 6 people and injured 24.
The 2020 Sparta earthquake struck North Carolina on August 9 at 08:07 EDT. 1 earthquake was near the small town of Sparta, Alleghany County.
From Wikipedia, CC BY-SA 4.0.
A magnitude 5.1 earthquake struck Sparta, North Carolina, United States. It destroyed 60 houses.
3 on August 9, oldest first.
Avachinsky, Russia erupted with a Volcanic Explosivity Index of 2.
East Epi, Vanuatu erupted. It killed few people (about 1 to 50). The eruption caused a tsunami and was accompanied by an earthquake.
Aira, Japan erupted with a Volcanic Explosivity Index of 3. It killed 5 people.
12 on August 9, oldest first.
A tsunami caused by a magnitude 6 earthquake struck Tainan, Taiwan, with a maximum water height of 10 meters. It killed 252 people, injured 432, destroyed 14,889 houses and did severe (about $5 to $25 million) damage.
A tsunami with a source recorded as volcano and earthquake struck Kamchatka, Russia.
A tsunami caused by a magnitude 6.5 earthquake struck Acapulco, Mexico.
A tsunami struck Sydney Harbor, Australia.
A tsunami with a source recorded as earthquake struck Central Chile, with a maximum water height of 3 meters.
A tsunami caused by a magnitude 7.4 earthquake struck Off Northeast Coast Honshu, Japan, with a maximum water height of 0.25 meters. It killed 18 people and destroyed 8 houses.
A tsunami with a source recorded as volcano and earthquake struck Loyalty Islands, New Caledonia, with a maximum water height of 1.2 meters. It killed few people (about 1 to 50).
A tsunami caused by a magnitude 7.2 earthquake struck Off Northeast Coast Honshu, Japan, with a maximum water height of 0.6 meters.
A tsunami caused by a magnitude 6.3 earthquake struck Off Northeast Coast Honshu, Japan, with a maximum water height of 0.02 meters.
A tsunami with a source recorded as earthquake and landslide struck Marmara Sea, Turkey, with a maximum water height of 2.7 meters. It killed 2,800 people, injured 7,000, destroyed 24,700 houses and did extreme (about $25 million or more) damage.
A tsunami with a source recorded as meteorological struck Northern Chile, with a maximum water height of 7.5 meters.
A tsunami caused by a magnitude 6.3 earthquake struck Ithaki Island, Greece. It did extreme (about $25 million or more) damage.
2 on August 9, oldest first.
A G3 (strong) geomagnetic storm began August 9, 1948, reached Kp 7 and lasted 36 hours, with a daily Ap as high as 74; at that Kp the aurora may be seen from about 50 degrees geomagnetic latitude.
A G4 (severe) geomagnetic storm began August 9, 1972, reached Kp 8+ and lasted 9 hours, with a daily Ap as high as 74; at that Kp the aurora may be seen from about 43 degrees geomagnetic latitude.
4 on August 9, oldest first.
A 51-year-old man was killed by lightning as he walked from his car to his mailbox outside his home. It was raining moderately at the time.
A 67-year old male was killed by lightning as he edged his yard.
Rip currents were vigorous during the first half of August. Rescues were numerous including 60 people near Atlantic city on the 3rd and 4th. rescues for the 2nd and 3rd occurred at Harvey Ceders and Sea Girt.
A large long period south swell brought large surf and dangerous conditions to south facing shores of each island.
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.