M4.2 earthquake 181 km S of Nikolski, Alaska
A magnitude 4.2 earthquake struck 181 km S of Nikolski, Alaska at Oct 29, 7:44 PM ET, 10 km deep, light – felt by most people nearby, rattling windows, rarely damage.
Share
| Magnitude | 4.2 mb |
| Time | 29 Oct 2025, 23:44 UTC |
| Location | 51.311°, -169.006° – 181 km S of Nikolski, Alaska |
| Depth | 10.0 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 1.0 |
| USGS event | us6000rkap |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.5 | 92 km S of Nikolski, Alaska · tsunami flag · PAGER green | Mar 5, 2:25 PM 225 d ago | 17 km | 1 report |
| 5.4 | 105 km SSW of Nikolski, Alaska · PAGER green | Sep 3, 4:21 PM 43 d ago | 10 km | – |
| 5.3 | 108 km SSW of Nikolski, Alaska | Sep 3, 2:45 PM 43 d ago | 10 km | – |
| 5.2 | 102 km SSW of Nikolski, Alaska · tsunami flag | Sep 3, 9:03 AM 43 d ago | 10 km | – |
| 4.9 | 100 km SSW of Nikolski, Alaska | Sep 3, 7:39 AM 43 d ago | 10 km | – |
| 4.9 | 92 km SSW of Nikolski, Alaska | May 23, 5:03 AM 147 d ago | 10 km | – |
| 4.8 | 102 km SSW of Nikolski, Alaska | Dec 12, 1:14 PM 308 d ago | 13 km | 1 report |
| 4.7 | 115 km SSW of Nikolski, Alaska | Feb 19, 9:38 AM 239 d ago | 10 km | – |
| 4.7 | 151 km SSW of Nikolski, Alaska | Jan 19, 9:33 PM 270 d ago | 10 km | – |
| 4.6 | 92 km SSW of Nikolski, Alaska | Sep 2, 1:40 AM 45 d ago | 33 km | – |
| 4.6 | 91 km SSW of Nikolski, Alaska | Sep 2, 1:16 AM 45 d ago | 13 km | – |
| 4.6 | 97 km SSW of Nikolski, Alaska | Sep 2, 1:10 AM 45 d ago | 35 km | – |
About this earthquake
How strong was the 181 km S of Nikolski, Alaska earthquake?
Magnitude 4.2 (mb), light – felt by most people nearby, rattling windows, rarely damage. Depth 10 km. Strongest estimated shaking: intensity 1.0 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.