| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 51.229, 178.062 |
| UTC time | 1999-08-09 22:58:45.390 |
Earthquake details
Monday, August 9, 1999 Earthquake
The earthquake hit Alaska on Monday, August 9, 1999 at 22:58 UTC with a magnitude of 5.5. The closest known location in the current dataset is Petropavlovsk-Kamchatskiy (Alaska - AL), about 1338.9 km away. The epicenter is located at longitude 178.062 and latitude 51.229.
| Location | Rat Islands, Aleutian Islands |
| Country | Alaska (AL) |
| Severity | Strong |
Earthquake map 1999-08-09
Closest countries
The 12 closest cities near the epicenter.
| Petropavlovsk-Kamchatskiy | 1338.9 km |
| Yelizovo | 1355.5 km |
| Magadan | 1937.6 km |
| Anchorage | 2240.7 km |
| Fairbanks | 2472.0 km |
| Nemuro | 2581.4 km |
| Yuzhno-Sakhalinsk | 2592.6 km |
| Korsakov | 2604.2 km |
| Abashiri | 2632.5 km |
| Kholmsk | 2636.3 km |
| Kitami | 2671.0 km |
| Sovetskaya Gavan' | 2678.9 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
38.6 km
M 4.5
Rat Islands, Aleutian Islands
Alaska · 2026-10-19 16:27 UTC
17.6 km
M 5.0
Rat Islands, Aleutian Islands
Alaska · 2026-09-27 07:48 UTC
95.8 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-09-27 07:48 UTC
95.1 km
M 4.2
Rat Islands, Aleutian Islands
Alaska · 2026-08-20 02:45 UTC
55.0 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-29 12:45 UTC
74.7 km
M 4.1
Rat Islands, Aleutian Islands
Alaska · 2026-07-13 19:01 UTC
23.7 km
M 4.6
Rat Islands, Aleutian Islands
Alaska · 2026-05-27 05:57 UTC
59.2 km
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