M4.2 earthquake 200 km W of Adak, Alaska
A magnitude 4.2 earthquake struck 200 km W of Adak, Alaska at Oct 4, 9:51 PM ET, 79 km deep, light – felt by most people nearby, rattling windows, rarely damage.
Share
| Magnitude | 4.2 mb |
| Time | 5 Oct 2025, 01:51 UTC |
| Location | 51.574°, -179.500° – 200 km W of Adak, Alaska |
| Depth | 79.4 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 2.2 |
| USGS event | us6000revp |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.1 | 149 km WSW of Adak, Alaska · tsunami flag | Sep 11, 6:47 AM 35 d ago | 37 km | – |
| 5.0 | 212 km WSW of Adak, Alaska · PAGER green | Jun 18, 9:58 AM 120 d ago | 31 km | – |
| 5.0 | 209 km WSW of Adak, Alaska | Apr 18, 9:15 AM 181 d ago | 38 km | – |
| 4.9 | 204 km WSW of Adak, Alaska | Jun 13, 7:24 AM 125 d ago | 48 km | – |
| 4.7 | 294 km WSW of Adak, Alaska | Apr 20, 5:54 AM 179 d ago | 35 km | – |
| 4.7 | 225 km W of Adak, Alaska | Feb 19, 1:37 AM 240 d ago | 127 km | – |
| 4.6 | 181 km WSW of Adak, Alaska | Apr 5, 5:19 AM 195 d ago | 35 km | – |
| 4.5 | 142 km WSW of Adak, Alaska | Jan 19, 7:32 PM 270 d ago | 35 km | – |
| 4.5 | 240 km WSW of Adak, Alaska | Oct 11, 9:51 AM 370 d ago | 35 km | – |
| 4.4 | 275 km W of Adak, Alaska | Oct 11, 8:16 AM 5 d ago | 95 km | – |
| 4.4 | 259 km WSW of Adak, Alaska | Sep 27, 6:30 AM 19 d ago | 18 km | – |
| 4.4 | 282 km WSW of Adak, Alaska | Sep 26, 1:01 PM 20 d ago | 10 km | – |
About this earthquake
How strong was the 200 km W of Adak, Alaska earthquake?
Magnitude 4.2 (mb), light – felt by most people nearby, rattling windows, rarely damage. Depth 79 km. Strongest estimated shaking: intensity 2.2 on the Modified Mercalli scale.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
1 earthquakes within 100 km in the following two weeks are in our records, the strongest M4.5.
More
Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.