Preliminary earthquake data and analysis
| Event ID | 1423831 |
|---|---|
| Event time | 2025-08-03 17:30:35 (UTC) |
| Local time | 2025-08-04 01:30:35 - [It was night in the affected area.] |
| Last update | 2025-08-03 17:32:02 (UTC) |
| Magnitude | 3.1 |
| Depth | 105.1 km |
| Class | Minor |
| Hypocenter | Medium deep |
| Mercalli scale | 1 |
| Possible effects | People do not feel any Earth movement. |
| Data status | automatic |
| Data provider | USGS |
| Continent | North-America |
|---|---|
| Country | USA |
| Administration area | Alaska |
| Nearest settlement | Ninilchik |
| Distance | 58 km |
| Course | WNW |
| Surface type | underwater quake |
| Tsunami region | North Pacific |
| Water surface name | Gulf of Alaska |
According to the epicenter of the quake, this is an underwater quake.