| Magnitude | 6.6 |
| Alert | Severe |
| Depth | 8.0 km |
| Coordinates | 51.144, 177.954 |
| UTC time | 1977-09-04 17:24:42.800 |
Earthquake details
Sunday, September 4, 1977 Earthquake
The earthquake hit Alaska on Sunday, September 4, 1977 at 17:24 UTC with a magnitude of 6.6. The closest known location in the current dataset is Petropavlovsk-Kamchatskiy (Alaska - AL), about 1334.4 km away. The epicenter is located at longitude 177.954 and latitude 51.144.
| Location | Rat Islands, Aleutian Islands |
| Country | Alaska (AL) |
| Severity | Severe |
Earthquake map 1977-09-04
Closest countries
The 12 closest cities near the epicenter.
| Petropavlovsk-Kamchatskiy | 1334.4 km |
| Yelizovo | 1351.1 km |
| Magadan | 1937.8 km |
| Anchorage | 2252.7 km |
| Fairbanks | 2484.1 km |
| Nemuro | 2572.8 km |
| Yuzhno-Sakhalinsk | 2585.7 km |
| Korsakov | 2597.2 km |
| Abashiri | 2624.3 km |
| Kholmsk | 2629.4 km |
| Kitami | 2662.7 km |
| Sovetskaya Gavan' | 2673.0 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
57.3 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-29 12:45 UTC
85.7 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-13 19:01 UTC
17.7 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-05-27 05:57 UTC
62.7 km
M 4.7
295 km WSW of Adak
Alaska · 2026-04-20 09:54 UTC
95.2 km
M 4.5
Rat Islands, Aleutian Islands
Alaska · 2026-04-04 09:39 UTC
44.0 km
M 4.0
Rat Islands, Aleutian Islands
Alaska · 2026-02-05 19:33 UTC
69.9 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-02-04 06:06 UTC
55.4 km
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