M4.1 earthquake 194 km SE of Atka, Alaska
A magnitude 4.1 earthquake struck 194 km SE of Atka, Alaska on Fri, Feb 22, 2019, 4:51 PM HAST (02:51 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.2 188 km SE 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
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-02-23 02:51:42 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 50.779° N, 172.554° 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 7.1 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 208°, poorly surrounded by stations
- Stations used
- 46
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
- 3.7191 km SE of Atka, Alaska · 2777 days ago · 10 km deep · 4 km away
- 4.2188 km SE of Atka, Alaska · 2758 days ago · 16 km deep · 8 km away
- 3.6258 km SE of Atka, Alaska · 2742 days ago · 10 km deep · 90 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000jlwg. Read Sat, Oct 3, 2026, 12:34 PM UTC.