M4.0 earthquake 91 km SE of Adak, Alaska
A magnitude 4.0 earthquake struck 91 km SE of Adak, Alaska on Tue, Jul 14, 1998, 9:20 PM HADT (06:20 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.9 62 km SSW 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
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1998-07-15 06:20:49 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.418° N, 175.535° 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: 8 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.681 km S of Atka, Alaska · 10275 days ago · 33 km deep · 96 km away
- 4.321 km SSE of Adak, Alaska · 10266 days ago · 61 km deep · 74 km away
- 4.589 km SSE of Adak, Alaska · 10264 days ago · 33 km deep · 58 km away
- 4.787 km SSE of Adak, Alaska · 10263 days ago · 33 km deep · 51 km away
- 4.588 km SSE of Adak, Alaska · 10263 days ago · 33 km deep · 53 km away
- 4.172 km SSE of Adak, Alaska · 10261 days ago · 33 km deep · 57 km away
- 4.962 km SSW of Atka, Alaska · 10256 days ago · 52 km deep · 72 km away
- 4.155 km ENE of Adak, Alaska · 10248 days ago · 94 km deep · 84 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008rhw. Read Sat, Oct 3, 2026, 2:32 AM UTC.