M4.1 earthquake 33 km E of Port Alsworth, Alaska
A magnitude 4.1 earthquake struck 33 km E of Port Alsworth, Alaska at Oct 13, 12:51 PM ET, 188 km deep, light – felt by most people nearby, rattling windows, rarely damage. 14 people reported feeling it.
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| Magnitude | 4.1 ml |
| Time | 13 Oct 2025, 16:51 UTC |
| Location | 60.198°, -153.707° – 33 km E of Port Alsworth, Alaska |
| Depth | 188.4 km |
| Felt reports | 14 |
| Max. estimated intensity (MMI) | 3.4 |
| USGS event | ak025d59j5t5 |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 4.5 | 34 km ENE of Port Alsworth, Alaska · tsunami flag | Jan 6, 3:08 AM 284 d ago | 189 km | 105 reports |
| 4.2 | 37 km WSW of Anchor Point, Alaska | Jul 12, 6:11 PM 96 d ago | 79 km | 26 reports |
| 4.2 | 61 km E of Pedro Bay, Alaska | Jul 12, 2:00 AM 97 d ago | 107 km | 53 reports |
| 4.1 | 32 km W of Anchor Point, Alaska | May 10, 2:59 PM 159 d ago | 95 km | 20 reports |
| 4.1 | 30 km W of Anchor Point, Alaska | Mar 31, 11:44 AM 199 d ago | 83 km | 19 reports |
| 4.0 | 44 km W of Happy Valley, Alaska | Jul 6, 1:36 AM 103 d ago | 108 km | 71 reports |
| 4.0 | 42 km WNW of Nanwalek, Alaska | May 14, 9:06 AM 155 d ago | 94 km | – |
| 4.0 | 60 km W of Happy Valley, Alaska · tsunami flag | Dec 31, 3:36 PM 289 d ago | 117 km | 3 reports |
| 4.0 | 52 km WNW of Nanwalek, Alaska | Oct 8, 3:33 AM 374 d ago | 94 km | 8 reports |
| 3.9 | 25 km NW of Anchor Point, Alaska | Aug 29, 8:02 AM 48 d ago | 90 km | 19 reports |
| 3.9 | 59 km NE of Pedro Bay, Alaska | Aug 11, 6:26 PM 66 d ago | 147 km | 2 reports |
| 3.9 | 64 km ESE of Pedro Bay, Alaska | Aug 6, 5:38 AM 71 d ago | 103 km | 8 reports |
About this earthquake
How strong was the 33 km E of Port Alsworth, Alaska earthquake?
Magnitude 4.1 (ml), light – felt by most people nearby, rattling windows, rarely damage. Depth 188 km. Strongest estimated shaking: intensity 3.4 on the Modified Mercalli scale.
Was it felt?
14 people reported feeling it to the USGS "Did You Feel It?" survey; the highest reported intensity was 2.7.
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.