The 1931 Southwest Sumatra earthquake occurred on 25 September at 05:59 UTC. It was located between the Enggano Island and Sumatra, Indonesia, then under the rule of Dutch East Indies.[3] It had a magnitude of Mw 7.3,[1] or Ms 7.5.[4][5]
  | |
| UTC time | 1931-09-25 05:59:51 |
|---|---|
| ISC event | 907033 |
| USGS-ANSS | ComCat |
| Local date | 25 September 1931 |
| Local time | 12:59 |
| Magnitude | 7.3 Mw[1] |
| Depth | 35 km (22 mi)[1] |
| Epicenter | 5°11′S 102°31′E / 5.18°S 102.51°E[1] |
| Areas affected | Indonesia |
| Max. intensity | IX (Destructive)[2] |
| Tsunami | 1 m |
The earthquake occurred off southwest Sumatra. Some huts were shifted by about 0.5 metre. The earthquake could be felt in Padang, more than 500 km away and in Bandung, about 600 km away. It was reported that the earthquake was even felt in Pamekasan, Madura Island, about 1250 km away. A tsunami of 1 metre high was reported.[3]
See also
editReferences
edit- ^ a b c d Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999" (PDF). International Handbook of Earthquake & Engineering Seismology. Part A, Volume 81A (First ed.). Academic Press. p. 676. ISBN 978-0124406520.
- ^ Martin, S. S.; Cummins, P. R.; Meltzner, A. J. (2022), "Gempa Nusantara: A Database of 7380 Macroseismic Observations for 1200 Historical Earthquakes in Indonesia from 1546 to 1950", Bulletin of the Seismological Society of America, 112 (6): 2958–2980, Bibcode:2022BuSSA.112.2958M, doi:10.1785/0120220047, hdl:10356/166257, ISSN 0037-1106, S2CID 253365854
- ^ a b National Geophysical Data Center / World Data Service (NGDC/WDS) (1972), Significant Earthquake Database (Data Set), National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K
- ^ Puspito, Nanang T.; Gunawan, Indra (December 2005). "Tsunami Sources in the Sumatra Region, Indonesia and Simulation of the 26 December 2004. Aceh Tsunami" (PDF). ISET Journal of Earthquake Technology. Paper No. 459. 42 (4): 111–125.
- ^ Newcomb, K. R.; McCann, W. R. (1987). "Seismic history and seismotectonics of the Sunda Arc" (PDF). Journal of Geophysical Research. 92 (B1): 421. Bibcode:1987JGR....92..421N. doi:10.1029/JB092iB01p00421.
External links
edit- The International Seismological Centre has a bibliography and/or authoritative data for this event.