M3.8 earthquake 148 km NE of Atka, Alaska
A magnitude 3.8 earthquake struck 148 km NE of Atka, Alaska on Thu, Dec 28, 2023, 3:47 AM HAST (13:47 UTC), 246 km (153 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.8 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-12-28 13:47:38 UTC
- Depth
- 245.9 km (152.8 mi), intermediate-depth
- Epicenter
- 53.036° N, 172.505° 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 |
|---|---|---|---|
| 3.8 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.123 · 17 stations |
| 3.6 | 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 7.6 km horizontally, 10.6 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 141°
- Stations used
- 41
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 3.0182 km WSW of Nikolski, Alaska · 986 days ago · 7 km deep · 94 km away
- 3.355 km ENE of Atka, Alaska · 976 days ago · 119 km deep · 100 km away
- 2.975 km E of Atka, Alaska · 961 days ago · 105 km deep · 95 km away
- 3.5159 km ENE of Atka, Alaska · 957 days ago · 193 km deep · 52 km away
- 3.8104 km ENE of Atka, Alaska · 957 days ago · 162 km deep · 64 km away
Before
- 3.365 km ENE of Atka, Alaska · 1009 days ago · 183 km deep · 90 km away
- 3.5102 km NE of Atka, Alaska · 1023 days ago · 216 km deep · 45 km away
- 3.4152 km W of Nikolski, Alaska · 1024 days ago · 240 km deep · 93 km away
- 2.9163 km WSW of Nikolski, Alaska · 1030 days ago · 96 km deep · 99 km away
- 3.4165 km W of Nikolski, Alaska · 1030 days ago · 11 km deep · 80 km away
- 3.264 km E of Atka, Alaska · 1032 days ago · 116 km deep · 97 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000m2ht (also filed as ak023gmwkkk5). Read Thu, Oct 1, 2026, 6:29 AM UTC.