M4.6 earthquake 81 km S of Atka, Alaska
A magnitude 4.6 earthquake struck 81 km S of Atka, Alaska on Sat, Aug 15, 1998, 4:59 PM HADT (01:59 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M6.1 96 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1998-08-16 01:59:10 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.468° N, 174.151° 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 1.6 and up: 8 in the 60 days after this one and 0 in the 30 days before it.
After
- 3.922 km ESE of Atka, Alaska · 10266 days ago · 33 km deep · 73 km away
- 4.962 km SSW of Atka, Alaska · 10256 days ago · 52 km deep · 38 km away
- 6.196 km SE of Atka, Alaska · 10245 days ago · 33 km deep · 71 km away
- 4.089 km ESE of Atka, Alaska · 10245 days ago · 33 km deep · 88 km away
- 4.468 km ESE of Atka, Alaska · 10244 days ago · 33 km deep · 91 km away
- 4.398 km ESE of Atka, Alaska · 10244 days ago · 33 km deep · 96 km away
- 3.8105 km ESE of Atka, Alaska · 10243 days ago · 33 km deep · 97 km away
- 4.361 km SW of Atka, Alaska · 10230 days ago · 33 km deep · 65 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008tbd. Read Fri, Oct 2, 2026, 7:10 PM UTC.