| Magnitude | 5.3 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 50.848, 178.426 |
| UTC time | 1977-09-04 16:44:25.200 |
Earthquake details
Sunday, September 4, 1977 Earthquake
The earthquake hit Alaska on Sunday, September 4, 1977 at 16:44 UTC with a magnitude of 5.3. The closest known location in the current dataset is Petropavlovsk-Kamchatskiy (Alaska - AL), about 1375.8 km away. The epicenter is located at longitude 178.426 and latitude 50.848.
| Location | Rat Islands, Aleutian Islands |
| Country | Alaska (AL) |
| Severity | Strong |
Earthquake map 1977-09-04
Closest countries
The 12 closest cities near the epicenter.
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
74.6 km
M 4.5
Rat Islands, Aleutian Islands
Alaska · 2026-10-19 16:27 UTC
58.1 km
M 5.0
Rat Islands, Aleutian Islands
Alaska · 2026-09-27 07:48 UTC
64.1 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-09-27 07:48 UTC
63.1 km
M 4.4
263 km WSW of Adak
Alaska · 2026-09-26 17:02 UTC
98.8 km
M 4.2
Rat Islands, Aleutian Islands
Alaska · 2026-08-20 02:45 UTC
23.5 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-13 19:01 UTC
63.5 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-05-27 05:57 UTC
31.1 km
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.