| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 51.261, 178.402 |
| UTC time | 1977-09-04 17:16:15.500 |
Earthquake details
Sunday, September 4, 1977 Earthquake
The earthquake hit Alaska on Sunday, September 4, 1977 at 17:16 UTC with a magnitude of 5.5. The closest known location in the current dataset is Petropavlovsk-Kamchatskiy (Alaska - AL), about 1360.7 km away. The epicenter is located at longitude 178.402 and latitude 51.261.
| Location | Rat Islands, Aleutian Islands |
| Country | Alaska (AL) |
| Severity | Strong |
Earthquake map 1977-09-04
Closest countries
The 12 closest cities near the epicenter.
| Petropavlovsk-Kamchatskiy | 1360.7 km |
| Yelizovo | 1377.2 km |
| Magadan | 1953.8 km |
| Anchorage | 2220.8 km |
| Fairbanks | 2454.3 km |
| Nemuro | 2605.4 km |
| Yuzhno-Sakhalinsk | 2616.0 km |
| Korsakov | 2627.7 km |
| Abashiri | 2656.4 km |
| Kholmsk | 2659.6 km |
| Kitami | 2694.9 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 · 2026-10-19 16:27 UTC
28.7 km
M 4.5
Rat Islands, Aleutian Islands
Alaska · 2026-10-19 16:27 UTC
16.4 km
M 4.4
275 km W of Adak
Alaska · 2026-10-11 12:16 UTC
85.2 km
M 4.4
259 km WSW of Adak
Alaska · 2026-09-27 10:30 UTC
94.8 km
M 5.0
Rat Islands, Aleutian Islands
Alaska · 2026-09-27 07:48 UTC
76.1 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-09-27 07:48 UTC
75.5 km
M 4.4
263 km WSW of Adak
Alaska · 2026-09-26 17:02 UTC
94.5 km
M 4.2
Rat Islands, Aleutian Islands
Alaska · 2026-08-20 02:45 UTC
40.7 km
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