M4.1 earthquake 223 km W of Adak, Alaska
A magnitude 4.1 earthquake struck 223 km W of Adak, Alaska on Wed, Feb 7, 1996, 8:44 PM HAST (06:44 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.6 204 km WSW 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
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1996-02-08 06:44:00 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.864° N, 179.878° 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 |
|---|---|---|---|
| 4.1 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · 22 stations |
| 4.1 | mb, body-wave | 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.
- Depth from
- OPERATOR_ASSIGNED
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.1197 km WSW of Adak, Alaska · 11190 days ago · 33 km deep · 90 km away
- 5.6204 km WSW of Adak, Alaska · 11190 days ago · 33 km deep · 76 km away
- 4.3235 km WSW of Adak, Alaska · 11167 days ago · 33 km deep · 57 km away
- 3.8292 km WSW of Adak, Alaska · 11153 days ago · 33 km deep · 97 km away
- 3.9161 km WSW of Adak, Alaska · 11140 days ago · 33 km deep · 86 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0007cjf (also filed as ak9961slsh8j). Read Sun, Oct 4, 2026, 3:20 PM UTC.