M4.3 earthquake 21 km SSE of Adak, Alaska
A magnitude 4.3 earthquake struck 21 km SSE of Adak, Alaska on Mon, Aug 24, 1998, 10:46 AM HADT (19:46 UTC), 61 km (38 mi) below the surface.
A larger quake followed: M4.7 87 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1998-08-24 19:46:33 UTC
- Depth
- 60.8 km (37.8 mi), shallow
- Epicenter
- 51.697° N, 176.503° 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
- FROM_LOCATION
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.649 km N of Adak, Alaska · 10266 days ago · 47 km deep · 70 km away
- 4.589 km SSE of Adak, Alaska · 10264 days ago · 33 km deep · 68 km away
- 4.787 km SSE of Adak, Alaska · 10264 days ago · 33 km deep · 66 km away
- 4.588 km SSE of Adak, Alaska · 10263 days ago · 33 km deep · 67 km away
- 4.172 km SSE of Adak, Alaska · 10262 days ago · 33 km deep · 51 km away
- 4.155 km ENE of Adak, Alaska · 10249 days ago · 94 km deep · 62 km away
- 4.270 km WNW of Adak, Alaska · 10249 days ago · 33 km deep · 88 km away
- 4.731 km SW of Adak, Alaska · 10217 days ago · 58 km deep · 29 km away
- 4.342 km S of Adak, Alaska · 10216 days ago · 67 km deep · 26 km away
- 4.523 km W of Adak, Alaska · 10209 days ago · 60 km deep · 37 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008ttk. Read Sat, Oct 3, 2026, 12:38 PM UTC.