M4.2 earthquake 199 km WSW of Adak, Alaska
A magnitude 4.2 earthquake struck 199 km WSW of Adak, Alaska at Dec 3, 6:39 AM ET, 13 km deep, light – felt by most people nearby, rattling windows, rarely damage.
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| Magnitude | 4.2 mb |
| Time | 3 Dec 2025, 11:39 UTC |
| Location | 50.960°, -179.108° – 199 km WSW of Adak, Alaska |
| Depth | 12.7 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 4.1 |
| USGS event | us6000rs79 |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.5 | 122 km SW of Adak, Alaska · tsunami flag · PAGER green | Sep 21, 5:30 AM 390 d ago | 30 km | 4 reports |
| 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 | – |
| 4.6 | 181 km WSW of Adak, Alaska | Apr 5, 5:19 AM 194 d ago | 35 km | – |
| 4.6 | 137 km SW of Adak, Alaska | Feb 17, 6:12 PM 241 d ago | 10 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 | 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 | – |
| 4.4 | 255 km WSW of Adak, Alaska | Mar 5, 7:59 AM 225 d ago | 10 km | – |
About this earthquake
How strong was the 199 km WSW of Adak, Alaska earthquake?
Magnitude 4.2 (mb), light – felt by most people nearby, rattling windows, rarely damage. Depth 13 km. Strongest estimated shaking: intensity 4.1 on the Modified Mercalli scale.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
No earthquakes within 100 km have followed so far in our records.
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.