M2.5 earthquake 276 km S of Atka, Alaska
A magnitude 2.5 earthquake struck 276 km S of Atka, Alaska on Sun, Jul 26, 2020, 10:26 AM HADT (19:26 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M3.2 182 km SSE of Atka, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.5 (ml), micro
- Local time
- UTC
- 2020-07-26 19:26:28 UTC
- Depth
- 15.1 km (9.4 mi), shallow
- Epicenter
- 49.730° N, 173.749° 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 9.5 km horizontally, 9.9 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 298°, poorly surrounded by stations
- Stations used
- 15
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.2182 km SSE of Atka, Alaska · 2256 days ago · 10 km deep · 98 km away
- 2.2211 km SSE of Atka, Alaska · 2207 days ago · 10 km deep · 83 km away
- 2.8191 km S of Atka, Alaska · 2199 days ago · 10 km deep · 98 km away
- 2.6195 km S of Atka, Alaska · 2198 days ago · 10 km deep · 93 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000b8ja (also filed as ak0209kb923a). Read Wed, Sep 30, 2026, 9:39 AM UTC.