M3.7 earthquake 148 km ENE of Atka, Alaska
A magnitude 3.7 earthquake struck 148 km ENE of Atka, Alaska on Mon, Feb 4, 2019, 10:39 AM HAST (20:39 UTC), 107 km (66 mi) below the surface.
A larger quake followed: M4.4 180 km E 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
- 3.7 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-02-04 20:39:03 UTC
- Depth
- 106.7 km (66.3 mi), intermediate-depth
- Epicenter
- 52.737° N, 172.211° 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 15.4 km horizontally, 21.5 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- From location
- Station coverage gap
- 177°
- Stations used
- 16
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4180 km E of Atka, Alaska · 2793 days ago · 53 km deep · 86 km away
- 3.7180 km E of Atka, Alaska · 2793 days ago · 58 km deep · 84 km away
- 3.0167 km WSW of Nikolski, Alaska · 2738 days ago · 43 km deep · 98 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000jn9p. Read Thu, Oct 1, 2026, 4:41 AM UTC.