M3.4 earthquake 223 km SE of Sand Point, Alaska
A magnitude 3.4 earthquake struck 223 km SE of Sand Point, Alaska on Sat, Jul 31, 2021, 11:50 PM AKDT (07:50 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.4 (ml), minor
- Local time
- UTC
- 2021-08-01 07:50:31 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 53.843° N, 158.184° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.2 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 225°, poorly surrounded by stations
- Stations used
- 75
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 7 in the 30 days before it.
After
- 2.7187 km SE of Sand Point, Alaska · 1874 days ago · 12 km deep · 36 km away
- 2.3262 km SSE of Perryville, Alaska · 1874 days ago · 21 km deep · 69 km away
- 2.1124 km SE of Sand Point, Alaska · 1858 days ago · 12 km deep · 99 km away
- 3.1141 km SSE of Sand Point, Alaska · 1856 days ago · 20 km deep · 100 km away
- 3.4173 km SE of Sand Point, Alaska · 1853 days ago · 17 km deep · 63 km away
- 2.6130 km SSE of Sand Point, Alaska · 1853 days ago · 35 km deep · 96 km away
- 2.6257 km SE of Perryville, Alaska · 1852 days ago · 10 km deep · 97 km away
- 2.6150 km SSE of Sand Point, Alaska · 1850 days ago · 10 km deep · 87 km away
Before
- 4.0233 km SSE of Perryville, Alaska · 1881 days ago · 24 km deep · 51 km away
- 2.1151 km SSE of Perryville, Alaska · 1892 days ago · 34 km deep · 91 km away
- 1.8150 km SSE of Sand Point, Alaska · 1897 days ago · 40 km deep · 87 km away
- 1.8145 km SSE of Sand Point, Alaska · 1897 days ago · 40 km deep · 91 km away
- 2.7133 km SSE of Sand Point, Alaska · 1898 days ago · 10 km deep · 97 km away
- 2.4132 km SE of Sand Point, Alaska · 1902 days ago · 34 km deep · 91 km away
- 2.5152 km SSE of Sand Point, Alaska · 1907 days ago · 10 km deep · 93 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000f16e (also filed as ak0219sdxqin). Read Wed, Sep 23, 2026, 7:12 PM UTC.