  1930 Bago earthquake (Myanmar) | |
| UTC time | 1930-05-05 13:46:01 |
|---|---|
| ISC event | 907352 |
| USGS-ANSS | ComCat |
| Local date | 5 May 1930 |
| Local time | 20:18:01 MST |
| Magnitude | 7.4 Mw |
| Depth | 35 km (22 mi) |
| Epicenter | 17°51′36″N 96°25′48″E / 17.860°N 96.430°E |
| Fault | Sagaing Fault |
| Type | Strike-slip |
| Areas affected | Myanmar |
| Max. intensity | RFS IX (Devastating tremor) |
| Tsunami | 1.06 m (3 ft 6 in) |
| Casualties | 550–7,000 fatalities |
The 1930 Bago (Pegu) earthquake (Burmese: ၁၉၃၀ ပဲခူးတိုင်းငလျင်), also known as the Swa earthquake struck Myanmar on 5 May. The moment magnitude (Mw ) 7.4 earthquake had a focal depth of 35 km (22 mi) and maximum Rossi–Forel intensity of IX (Devastating tremor). The earthquake was the result of rupture along a 131 km (81 mi) segment of the Sagaing Fault—a major strike-slip fault that runs through the country. Extensive damage was reported in the southern part of the country, particularly in Bago and Yangon, where buildings collapsed and fires erupted. At least 550, and possibly up to 7,000 people were killed. A moderate tsunami was generated along the Burmese coast which caused minor damage to ships and a port. It was felt for over 570,000 km2 (220,000 sq mi) and as far as Shan State and Thailand. The mainshock was followed by many aftershocks; several were damaging; additional earthquakes occurred in July and December, killing dozens. The December earthquake was similarly sized which also occurred along the Sagaing Fault.