13 Sept 2026, 02:08 UTC · Sep 12, 10:08 PM ET
M3.9 earthquake 152 km WSW of Adak, Alaska
A magnitude 3.9 earthquake struck 152 km WSW of Adak, Alaska at Sep 12, 10:08 PM ET, 29 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.9 mb |
| Time | 13 Sept 2026, 02:08 UTC |
| Location | 51.154°, -178.506° – 152 km WSW of Adak, Alaska |
| Depth | 28.7 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 2.9 |
| USGS event | us7000th2x |
Within 100 km
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 | 140 km WSW of Adak, Alaska | Nov 27, 11:32 PM 323 d ago | 48 km | – |
| 4.3 | 122 km SW of Adak, Alaska | Jul 11, 2:41 AM 98 d ago | 35 km | – |
| 4.3 | 124 km SW of Adak, Alaska | Nov 21, 1:49 PM 329 d ago | 46 km | – |
FAQ
About this earthquake
How strong was the 152 km WSW of Adak, Alaska earthquake?
Magnitude 3.9 (mb), minor – felt by people near the epicenter. Depth 29 km. Strongest estimated shaking: intensity 2.9 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.
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.