23 Jul 2026, 04:43 UTC · Jul 23, 12:43 AM ET
M3.9 earthquake 142 km W of Nikolski, Alaska
A magnitude 3.9 earthquake struck 142 km W of Nikolski, Alaska at Jul 23, 12:43 AM ET, 226 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.9 mb |
| Time | 23 Jul 2026, 04:43 UTC |
| Location | 53.154°, -170.954° – 142 km W of Nikolski, Alaska |
| Depth | 225.6 km |
| Felt reports | 0 |
| USGS event | us7000t37i |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 6.5 | 177 km W of Nikolski, Alaska · tsunami flag · PAGER green | Sep 17, 10:19 AM 29 d ago | 98 km | 8 reports |
| 5.6 | 172 km ENE of Atka, Alaska · PAGER green | May 22, 8:16 AM 147 d ago | 15 km | – |
| 4.9 | 168 km E of Atka, Alaska · PAGER green | May 18, 5:37 PM 151 d ago | 10 km | – |
| 4.5 | 101 km WSW of Nikolski, Alaska | Sep 20, 9:55 AM 26 d ago | 92 km | – |
| 4.4 | 90 km W of Nikolski, Alaska | Jun 25, 7:05 PM 113 d ago | 64 km | – |
| 4.4 | 171 km E of Atka, Alaska | May 22, 4:10 PM 147 d ago | 21 km | – |
| 4.4 | 84 km WSW of Nikolski, Alaska | Feb 23, 5:54 AM 235 d ago | 10 km | – |
| 4.3 | 185 km E of Atka, Alaska | Nov 9, 9:20 AM 341 d ago | 50 km | – |
| 4.1 | 171 km W of Nikolski, Alaska | Sep 17, 10:39 AM 29 d ago | 104 km | – |
| 3.9 | 165 km WSW of Nikolski, Alaska | Sep 21, 8:44 PM 25 d ago | 121 km | – |
| 3.9 | 168 km WSW of Nikolski, Alaska | Sep 16, 4:28 AM 31 d ago | 95 km | – |
| 3.9 | 179 km E of Atka, Alaska | May 24, 12:37 PM 145 d ago | 10 km | – |
FAQ
About this earthquake
How strong was the 142 km W of Nikolski, Alaska earthquake?
Magnitude 3.9 (mb), minor – felt by people near the epicenter. Depth 226 km.
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.
Earthquakes
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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.