M4.3 earthquake 87 km SSE of Atka, Alaska
A magnitude 4.3 earthquake struck 87 km SSE of Atka, Alaska at Aug 4, 10:57 AM ET, 33 km deep, light – felt by most people nearby, rattling windows, rarely damage.
Share
| Magnitude | 4.3 mb |
| Time | 4 Aug 2026, 14:57 UTC |
| Location | 51.530°, -173.512° – 87 km SSE of Atka, Alaska |
| Depth | 32.5 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 3.0 |
| USGS event | us6000ti0n |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.8 | 103 km SE of Atka, Alaska · PAGER green | Jul 26, 4:35 AM 82 d ago | 12 km | – |
| 5.1 | 79 km SE of Atka, Alaska | Dec 1, 5:21 PM 319 d ago | 35 km | 2 reports |
| 5.0 | 89 km SSW of Atka, Alaska | Feb 27, 12:17 AM 232 d ago | 34 km | – |
| 4.9 | 86 km SSE of Atka, Alaska | Aug 1, 7:07 PM 76 d ago | 35 km | – |
| 4.9 | 102 km SE of Atka, Alaska | Jul 25, 5:03 PM 83 d ago | 20 km | – |
| 4.9 | 101 km SE of Atka, Alaska | Jul 23, 5:30 AM 85 d ago | 35 km | – |
| 4.6 | 89 km SE of Atka, Alaska | Aug 2, 1:18 AM 76 d ago | 40 km | – |
| 4.6 | 98 km SE of Atka, Alaska | Jul 23, 2:51 AM 86 d ago | 43 km | – |
| 4.5 | 76 km ESE of Atka, Alaska | Aug 8, 11:36 PM 69 d ago | 52 km | 1 report |
| 4.5 | 86 km S of Atka, Alaska | Sep 25, 7:40 AM 386 d ago | 16 km | – |
| 4.4 | 121 km E of Atka, Alaska | Nov 30, 7:24 AM 320 d ago | 73 km | – |
| 4.3 | 85 km SE of Atka, Alaska | Jul 26, 9:18 AM 82 d ago | 39 km | – |
About this earthquake
How strong was the 87 km SSE of Atka, Alaska earthquake?
Magnitude 4.3 (mb), light – felt by most people nearby, rattling windows, rarely damage. Depth 33 km. Strongest estimated shaking: intensity 3.0 on the Modified Mercalli scale.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
1 earthquakes within 100 km in the following two weeks are in our records, the strongest M4.5.
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.