1977 Sumba earthquake
US$1.2 million[2] | |
| Max. intensity | MMI VI (Strong) |
|---|---|
| Tsunami | Yes |
| Casualties | ~180 killed 1,100+ injured |
The 1977 Sumba earthquake (also called the Sumbawa earthquake) occurred approximately 290 kilometres (180 mi) south of Bima, Sumbawa, and beneath the Indian Ocean, at 14:08 local time on 19 August. With a moment magnitude of 8.3, the earthquake is notable for having an unusually great magnitude for a shock with a normal faulting focal mechanism.[3] The shock occurred near the southern section of the Sunda Trench where several other tsunami-generating earthquakes have occurred. The earthquake was at the time the largest outer-rise earthquake ever recorded in Indonesia, and aftershocks along the trench extended about 130 kilometres (81 mi) eastward and 110 kilometres (68 mi) westward from the epicenter.[4]
Although damage from the earthquake was limited to Indonesia, ground movement was reportedly felt as far afield as
See also
References
- ^ ISBN 978-0-12-440652-0
- ^ a b c National Geophysical Data Center. "Significant Earthquake". Retrieved 12 June 2015.
- ISBN 9781862393295.
- ^ doi:10.1785/0120080324, archived from the originalon 2015-09-23, retrieved 2014-06-08
- Canberra Times. AAP. 20 August 1977. Retrieved 15 June 2015.
- ISBN 978-0-521-19085-5
- ^ Soloviev, S. L.; Kim, K., eds. (1992). Catalog of Tsunamis in the Pacific, 1969-1982. Translated from Russian by Amerind Publishing Co. Pvt. Ltd. Moscow: Academy of Sciences of the USSR Soviet Geophysical Committee. pp. 109–110.
Sources
- Gordon, P. J.; Paull, E. P.; Gaull, B. A. (1978), The Indonesian earthquake of 19 August 1977: Effects in western Australia (PDF), Department of Natural Resources
- Lynnes, C. S.; Lay, T. (1988), "Source Process of the Great 1977 Sumba Earthquake" (PDF), Geophysical Research Letters, 93 (B11): 13, 407–13, 420,
External links
- The International Seismological Centre has a bibliography and/or authoritative data for this event.