M3.8 earthquake 128 km SE of Atka, Alaska
A magnitude 3.8 earthquake struck 128 km SE of Atka, Alaska on Tue, Sep 15, 1998, 10:17 AM HADT (19:17 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.3 98 km ESE 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
- 3.8 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1998-09-15 19:17:35 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.547° N, 172.649° 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: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.398 km ESE of Atka, Alaska · 10246 days ago · 33 km deep · 36 km away
- 3.8105 km ESE of Atka, Alaska · 10245 days ago · 33 km deep · 28 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008uzs. Read Sun, Oct 4, 2026, 11:58 PM UTC.