M3.0 earthquake 244 km SW of Adak, Alaska
A magnitude 3.0 earthquake struck 244 km SW of Adak, Alaska on Tue, Oct 17, 2023, 6:15 PM HADT (03:15 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.0 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-10-18 03:15:08 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 50.093° N, 178.686° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 3.0 | ML, local (Richter) | USGS National Earthquake Information Center | Preferred · Reviewed |
| 3.0 | ML, local (Richter) | Alaska Earthquake Center | Preliminary |
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.9 km horizontally, 2.0 km in depth
- Depth from
- Operator assigned
- Station coverage gap
- 264°, poorly surrounded by stations
- Stations used
- 22
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.4180 km SW of Adak, Alaska · 1077 days ago · 10 km deep · 65 km away
- 3.0268 km SW of Adak, Alaska · 1077 days ago · 10 km deep · 49 km away
- 2.4222 km SSW of Adak, Alaska · 1072 days ago · 11 km deep · 38 km away
- 2.4231 km SSW of Adak, Alaska · 1072 days ago · 12 km deep · 60 km away
- 2.8210 km SSW of Adak, Alaska · 1039 days ago · 10 km deep · 60 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000l86x (also filed as ak023ddb9iyu). Read Thu, Oct 1, 2026, 12:24 PM UTC.