| Magnitude | 5.1 |
| Alert | Strong |
| Depth | 54.7 km |
| Coordinates | 51.574, 178.842 |
| UTC time | 2021-10-23 03:10:03.225 |
Earthquake details
Saturday, October 23, 2021 Earthquake
The earthquake hit Alaska on Saturday, October 23, 2021 at 03:10 UTC with a magnitude of 5.1. The closest known location in the current dataset is Petropavlovsk-Kamchatskiy (Alaska - AL), about 1380.8 km away. The epicenter is located at longitude 178.842 and latitude 51.574.
| Location | Rat Islands, Aleutian Islands |
| Country | Alaska (AL) |
| Severity | Strong |
Earthquake map 2021-10-23
Closest countries
The 12 closest cities near the epicenter.
| Petropavlovsk-Kamchatskiy | 1380.8 km |
| Yelizovo | 1396.9 km |
| Magadan | 1956.1 km |
| Anchorage | 2174.7 km |
| Fairbanks | 2407.9 km |
| Nemuro | 2640.0 km |
| Yuzhno-Sakhalinsk | 2644.5 km |
| Korsakov | 2656.7 km |
| Kholmsk | 2687.7 km |
| Abashiri | 2689.5 km |
| Sovetskaya Gavan' | 2726.1 km |
| Kitami | 2728.0 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.2
Rat Islands, Aleutian Islands
Alaska · 2026-08-20 02:45 UTC
69.6 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-29 12:45 UTC
50.6 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-13 19:01 UTC
87.7 km
M 4.2
239 km WSW of Adak
Alaska · 2026-06-06 14:48 UTC
93.0 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-05-27 05:57 UTC
65.7 km
M 4.7
295 km WSW of Adak
Alaska · 2026-04-20 09:54 UTC
65.5 km
M 4.5
Rat Islands, Aleutian Islands
Alaska · 2026-04-04 09:39 UTC
54.4 km
M 4.0
230 km W of Adak
Alaska · 2026-03-18 16:57 UTC
83.4 km
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