M2.6 earthquake 243 km SSW of Adak, Alaska
A magnitude 2.6 earthquake struck 243 km SSW of Adak, Alaska on Thu, Apr 7, 2016, 12:37 AM HADT (09:37 UTC), 43 km (27 mi) below the surface.
A larger quake followed: M2.9 257 km SSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.6 (ML, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-04-07 09:37:20 UTC
- Depth
- 42.7 km (26.5 mi), shallow
- Epicenter
- 49.771° N, 177.611° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 2.6 | ML, local (Richter) | USGS National Earthquake Information Center | Preferred · Reviewed · 17 stations |
| 2.6 | ML, local (Richter) | Alaska Earthquake Center | Preliminary |
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 11.6 km horizontally, 10.1 km in depth
- Depth from
- From location
- Station coverage gap
- 300°, poorly surrounded by stations
- Stations used
- 16
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.9257 km SSW of Adak, Alaska · 3822 days ago · 9 km deep · 17 km away
- 2.3237 km SW of Adak, Alaska · 3809 days ago · 61 km deep · 80 km away
- 2.8210 km S of Adak, Alaska · 3788 days ago · 16 km deep · 90 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20005hwk (also filed as ak13432785, ak0164i88vzn). Read Mon, Oct 5, 2026, 7:38 AM UTC.