18 Aug 2026, 13:05 UTC · Aug 18, 9:05 AM ET
M3.4 earthquake 87 km SSW of Unalaska, Alaska
A magnitude 3.4 earthquake struck 87 km SSW of Unalaska, Alaska at Aug 18, 9:05 AM ET, 27 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.4 ml |
| Time | 18 Aug 2026, 13:05 UTC |
| Location | 53.117°, -166.862° – 87 km SSW of Unalaska, Alaska |
| Depth | 26.8 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 2.2 |
| USGS event | us6000tlq8 |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.1 | 49 km S of Akutan, Alaska · tsunami flag | Oct 17, 11:48 AM 364 d ago | 85 km | 20 reports |
| 5.0 | 83 km SSW of Unalaska, Alaska | Jun 13, 6:38 AM 125 d ago | 53 km | 3 reports |
| 5.0 | 54 km ENE of Nikolski, Alaska · tsunami flag | Nov 25, 12:16 PM 325 d ago | 66 km | 10 reports |
| 4.7 | 78 km SSE of Akutan, Alaska | May 4, 10:38 PM 165 d ago | 44 km | – |
| 4.5 | 30 km SSW of Unalaska, Alaska | Jul 12, 7:23 AM 96 d ago | 96 km | 15 reports |
| 4.1 | 85 km E of Nikolski, Alaska | Feb 12, 10:35 PM 246 d ago | 35 km | – |
| 4.0 | 55 km SE of Unalaska, Alaska | Jan 18, 9:06 PM 271 d ago | 55 km | – |
| 4.0 | 81 km E of Nikolski, Alaska | Jan 6, 7:18 AM 283 d ago | 42 km | – |
| 3.9 | 43 km S of Unalaska, Alaska | Jun 11, 12:53 PM 127 d ago | 92 km | – |
| 3.9 | 56 km ENE of Nikolski, Alaska | Jan 2, 2:45 PM 287 d ago | 62 km | – |
| 3.9 | 40 km ESE of Nikolski, Alaska | Jan 2, 9:34 AM 287 d ago | 44 km | – |
| 3.8 | 41 km S of Unalaska, Alaska | Jul 14, 10:56 AM 94 d ago | 83 km | 1 report |
FAQ
About this earthquake
How strong was the 87 km SSW of Unalaska, Alaska earthquake?
Magnitude 3.4 (ml), minor – felt by people near the epicenter. Depth 27 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?
No earthquakes within 100 km have followed so far in our records.
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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.