1933 Sumatra earthquake
| UTC time | 1933-06-24 21:54:49 |
|---|---|
| ISC event | 905657 |
| USGS-ANSS | ComCat |
| Local date | June 25, 1933 |
| Local time | 04:54:49 WIB |
| Magnitude | 7.5–7.7 Ms |
| Depth | 20 km (12 mi) |
| Epicenter | 5°11′S 104°50′E / 5.18°S 104.83°E |
| Fault | Great Sumatran fault |
| Type | Strike-slip |
| Areas affected | Indonesia |
| Max. intensity | MMI IX (Violent) |
| Aftershocks | Multiple |
| Casualties | 788+ dead |
The 1933 Sumatra earthquake or Liwa earthquake affected southern Sumatra, Indonesia, on 25 June at 04:54 WIB. The earthquake had an estimated surface-wave magnitude (Ms ) of 7.5–7.7 and occurred at a shallow depth of 20 km (12 mi). It was caused by slip along a 130 km (81 mi) section of the seismically active Great Sumatran fault. The earthquake caused damage and hundreds of deaths in Kaur and Liwa. At least 788 people were reported killed, although the death toll may have been in the thousands. Aftershocks followed, including one that caused additional fatalities. The mainshock also triggered a nearby volcanic eruption at Suwoh two weeks later, killing many people.