M5.4 earthquake 227 km ESE of Attu Station, Alaska
A magnitude 5.4 earthquake struck 227 km ESE of Attu Station, Alaska at Mar 4, 8:26 AM ET, 10 km deep, moderate – felt widely, some damage to weak buildings.
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| Magnitude | 5.4 mww |
| Time | 4 Mar 2026, 13:26 UTC |
| Location | 52.165°, 176.341° – 227 km ESE of Attu Station, Alaska |
| Depth | 10.0 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 4.2 |
| PAGER alert | green |
| USGS event | us7000s1z1 |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 6.4 | 223 km ESE of Attu Station, Alaska · tsunami flag · PAGER green | Mar 4, 12:54 PM 226 d ago | 10 km | – |
| 5.9 | 280 km ESE of Attu Station, Alaska · tsunami flag · PAGER green | Jan 15, 3:52 AM 275 d ago | 19 km | – |
| 5.8 | 233 km ESE of Attu Station, Alaska · PAGER green | May 6, 10:15 AM 163 d ago | 10 km | – |
| 5.7 | 231 km ESE of Attu Station, Alaska · tsunami flag · PAGER green | Mar 6, 4:08 PM 224 d ago | 8 km | 1 report |
| 5.3 | 229 km ESE of Attu Station, Alaska | Mar 17, 12:21 PM 213 d ago | 10 km | – |
| 5.3 | 229 km ESE of Attu Station, Alaska · tsunami flag | Mar 3, 5:44 AM 227 d ago | 10 km | – |
| 5.3 | 227 km ESE of Attu Station, Alaska · tsunami flag | Mar 2, 6:46 PM 228 d ago | 10 km | – |
| 5.2 | 226 km ESE of Attu Station, Alaska | Mar 24, 4:59 PM 206 d ago | 10 km | – |
| 5.1 | 231 km ESE of Attu Station, Alaska | Aug 23, 7:20 PM 54 d ago | 15 km | 1 report |
| 5.1 | 233 km ESE of Attu Station, Alaska · tsunami flag | Mar 8, 6:41 PM 222 d ago | 4 km | – |
| 5.1 | 295 km ESE of Attu Station, Alaska · tsunami flag | Jan 23, 3:25 AM 267 d ago | 10 km | – |
| 5.0 | 221 km ESE of Attu Station, Alaska | Apr 3, 4:22 AM 197 d ago | 10 km | – |
About this earthquake
How strong was the 227 km ESE of Attu Station, Alaska earthquake?
Magnitude 5.4 (mww), moderate – felt widely, some damage to weak buildings. Depth 10 km. Strongest estimated shaking: intensity 4.2 on the Modified Mercalli scale.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
4 earthquakes within 100 km in the following two weeks are in our records, the strongest M6.4.
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.