Earthquake M3.9 – 128 km SSE of Atka, Alaska
Origin Time (UTC)
10:12:07 27.07.26
Magnitude
3.9 mb
Agency
EMSC, USGS
Coordinates
51.234600°N 173.158100°W
Energy Release
10.68 t
Weather
N/A
Depth
35 KM
A magnitude 3.9 earthquake struck 128 km SSE of Atka, Alaska on July 27, 2026. Based on seismic calculations, the event released an energy equivalent to approximately 10.68 t of TNT. The earthquake originated at a depth of 35 km below the surface.
Nearby Events
| Time | Mag | Epicenter | Explore |
|---|---|---|---|
|
14:08:23
27/07/2026
|
3.0
|
137 km SW of Nikolski, Alaska
52.0840°N 170.3290°W |
5 KM |
EMSC, USGS
|
MAP
EVENT
|
|
03:22:50
27/07/2026
|
3.7
|
100 km SE of Atka, Alaska
51.5160°N 173.2450°W |
9.1 KM |
EMSC, USGS
|
MAP
EVENT
|
|
03:10:48
27/07/2026
|
2.5
|
101 km SE of Atka, Alaska
51.4890°N 173.2610°W |
20 KM |
USGS
|
MAP
EVENT
|
|
02:42:55
27/07/2026
|
2.2
|
87 km SE of Atka, Alaska
51.5810°N 173.4010°W |
20 KM |
USGS
|
MAP
EVENT
|
|
00:31:12
27/07/2026
|
2.2
|
156 km S of Adak, Alaska
50.4690°N 176.6030°W |
4.4 KM |
USGS
|
MAP
EVENT
|