Preliminary earthquake data and analysis
| Event ID | 1372083 |
|---|---|
| Event time | 2025-05-21 04:03:10 (UTC) |
| Local time | 2025-05-20 19:03:10 - [It was night in the affected area.] |
| Last update | 2025-05-21 04:30:45 (UTC) |
| Magnitude | 4.3 |
| Depth | 135.534 km |
| Class | Light |
| Hypocenter | Medium deep |
| Mercalli scale | 3 |
| Possible effects | Any people indoors feel movement. Hanging objects swing back and forth. People outdoors might not realize that an earthquake is occurring. |
| Data status | reviewed |
| Data provider | USGS |
| Continent | Asia |
|---|---|
| Country | Japan |
| Administration area | Okinawa |
| Nearest settlement | Kumejima |
| Distance | 70 km |
| Course | WNW |
| Surface type | underwater quake |
| Tsunami region | North Pacific |
| Water surface name | Eastern China Sea |
According to the epicenter of the quake, this is an underwater quake.