  Ulaanbaatar  | |
| UTC time | 1957-12-04 03:37:53 |
|---|---|
| ISC event | 887636 |
| USGS-ANSS | ComCat |
| Local date | December 4, 1957 |
| Local time | 11:37:53 |
| Magnitude | Mw 7.8–8.1, Ms 8.0–8.5[i] |
| Depth | 20.0 km[8] |
| Epicenter | 45°11′20″N 99°22′05″E / 45.189°N 99.368°E |
| Areas affected | Mongolian People's Republic |
| Max. intensity | MMI XII (Extreme)[7] |
| Aftershocks | Yes, Ms 6.5[7] & M 6.8[9] |
| Casualties | 30[10] |
An earthquake occurred in southern Mongolia on December 4, 1957, measuring Mw 7.8–8.1 and assigned XII (Extreme) on the Modified Mercalli intensity scale. Surface faulting was observed in the aftermath with peak vertical and horizontal scarp reaching 9 m (30 ft). Because of the extremely sparse population in the area, this event, despite its magnitude, was not catastrophic. However, 30 people died and the towns of Dzun Bogd, Bayan-leg and Baruin Bogd were completely destroyed.
- ^ Ben-Menahem & Toksöz 1962, p. 1943.
- ^ Rizza et al. 2011, p. 918.
- ^ Molnar & Qidong 1984, p. 6210.
- ^ Cite error: The named reference
USGSwas invoked but never defined (see the help page). - ^ Okal 1976.
- ^ Kanamori 1977.
- ^ a b c Aptikaev & Erteleva 2019.
- ^ Vergnolle, Pollitz & Calais 2003.
- ^ Rothé 1969.
- ^ Bath 1973.
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