M4.2 earthquake 65 km NW of Atka, Alaska
A magnitude 4.2 earthquake struck 65 km NW of Atka, Alaska on Sat, Aug 15, 1998, 3:19 PM HADT (00:19 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.6 103 km NNE 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1998-08-16 00:19:52 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 52.568° N, 174.942° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008tb9. Read Fri, Oct 2, 2026, 8:07 PM UTC.