M4.7 earthquake 31 km SW of Adak, Alaska
A magnitude 4.7 earthquake struck 31 km SW of Adak, Alaska on Mon, Oct 12, 1998, 5:34 PM HADT (02:34 UTC), 58 km (36 mi) below the surface.
A larger quake followed: M5.3 70 km SSE 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
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1998-10-13 02:34:12 UTC
- Depth
- 58.0 km (36.0 mi), shallow
- Epicenter
- 51.659° N, 176.926° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (IV) on Adak.
From the USGS event page for usp0008wey. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
Nearby
Within 100 km, magnitude 1.7 and up: 9 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.342 km S of Adak, Alaska · 10215 days ago · 67 km deep · 24 km away
- 4.523 km W of Adak, Alaska · 10209 days ago · 60 km deep · 21 km away
- 5.370 km SSE of Adak, Alaska · 10196 days ago · 33 km deep · 64 km away
- 4.673 km SSE of Adak, Alaska · 10196 days ago · 33 km deep · 68 km away
- 4.077 km SSE of Adak, Alaska · 10196 days ago · 33 km deep · 74 km away
- 5.241 km NE of Adak, Alaska · 10195 days ago · 35 km deep · 72 km away
- 4.324 km SW of Adak, Alaska · 10190 days ago · 58 km deep · 6 km away
- 4.7115 km SW of Adak, Alaska · 10172 days ago · 33 km deep · 86 km away
- 3.9102 km W of Adak, Alaska · 10165 days ago · 66 km deep · 89 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008wey. Read Sat, Oct 3, 2026, 1:46 AM UTC.