| Magnitude | 6.4 |
| Alert | Severe |
| Depth | 34.0 km |
| Coordinates | 51.207, 178.388 |
| UTC time | 1977-09-04 15:40:57.300 |
Earthquake details
Sunday, September 4, 1977 Earthquake
The earthquake hit Alaska on Sunday, September 4, 1977 at 15:40 UTC with a magnitude of 6.4. The closest known location in the current dataset is Petropavlovsk-Kamchatskiy (Alaska - AL), about 1361.4 km away. The epicenter is located at longitude 178.388 and latitude 51.207.
| 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 | 1361.4 km |
| Yelizovo | 1378.0 km |
| Magadan | 1956.8 km |
| Anchorage | 2225.5 km |
| Fairbanks | 2459.5 km |
| Nemuro | 2603.7 km |
| Yuzhno-Sakhalinsk | 2615.5 km |
| Korsakov | 2627.1 km |
| Abashiri | 2655.0 km |
| Kholmsk | 2659.1 km |
| Kitami | 2693.4 km |
| Sovetskaya Gavan' | 2701.7 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
36.4 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-29 12:45 UTC
75.4 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-13 19:01 UTC
46.4 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-05-27 05:57 UTC
38.8 km
M 4.7
295 km WSW of Adak
Alaska · 2026-04-20 09:54 UTC
66.4 km
M 4.5
Rat Islands, Aleutian Islands
Alaska · 2026-04-04 09:39 UTC
17.2 km
M 4.9
Rat Islands, Aleutian Islands
Alaska · 2026-02-14 07:10 UTC
89.0 km
M 4.0
Rat Islands, Aleutian Islands
Alaska · 2026-02-05 19:33 UTC
87.5 km
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