| Magnitude | 5.3 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 51.246, 178.376 |
| UTC time | 1991-10-23 23:18:37.090 |
Earthquake details
Wednesday, October 23, 1991 Earthquake
The earthquake hit Alaska on Wednesday, October 23, 1991 at 23:18 UTC with a magnitude of 5.3. The closest known location in the current dataset is Petropavlovsk-Kamchatskiy (Alaska - AL), about 1359.4 km away. The epicenter is located at longitude 178.376 and latitude 51.246.
| Location | Rat Islands, Aleutian Islands |
| Country | Alaska (AL) |
| Severity | Strong |
Earthquake map 1991-10-23
Closest countries
The 12 closest cities near the epicenter.
| Petropavlovsk-Kamchatskiy | 1359.4 km |
| Yelizovo | 1375.9 km |
| Magadan | 1953.4 km |
| Anchorage | 2223.2 km |
| Fairbanks | 2456.7 km |
| Nemuro | 2603.4 km |
| Yuzhno-Sakhalinsk | 2614.3 km |
| Korsakov | 2626.0 km |
| Abashiri | 2654.5 km |
| Kholmsk | 2658.0 km |
| Kitami | 2692.9 km |
| Sovetskaya Gavan' | 2700.1 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
40.3 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-29 12:45 UTC
71.1 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-13 19:01 UTC
45.7 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-05-27 05:57 UTC
42.3 km
M 4.7
295 km WSW of Adak
Alaska · 2026-04-20 09:54 UTC
68.3 km
M 4.5
Rat Islands, Aleutian Islands
Alaska · 2026-04-04 09:39 UTC
20.7 km
M 4.9
Rat Islands, Aleutian Islands
Alaska · 2026-02-14 07:10 UTC
84.6 km
M 4.0
Rat Islands, Aleutian Islands
Alaska · 2026-02-05 19:33 UTC
84.5 km
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