1979 Bali earthquake
  | |
| UTC time | 1979-12-17 19:58:23 |
|---|---|
| ISC event | 654317 |
| USGS-ANSS | ComCat |
| Local date | December 18, 1979 |
| Local time | 03:58 |
| Magnitude | 6.3 Ms[1] |
| Depth | 15 km (9 mi)[2] |
| Epicenter | 8°29′S 115°45′E / 8.49°S 115.75°E[3] |
| Areas affected | Bali, Indonesia |
| Max. intensity | MMI VIII (Severe) |
| Landslides | Many |
| Casualties | 27 killed 200 injured |
The 1979 Bali earthquake occurred at 03:58 local time on 18 December with a
Tectonic setting
The island of Bali forms part of the Sunda Arc, which formed above the convergent boundary where the Australian Plate is subducting beneath the Sunda Plate. The rate of convergence across the line of the Sunda–Java Trench is 7.5 cm per year. Eastwards from Bali, the Sunda Arc is also being thrust over the Bali and Flores back-arc basins on a series of south-dipping thrusts. Focal mechanisms for earthquakes near Bali are dominantly thrust sense on both the subduction interface and the system of thrust faults to the north.[6]
A
Earthquake
A previous shock of 6.2
According to the United States Geological Survey (USGS), the 18 December shock occurred 60 km (37 mi) east-northeast of Denpasar at a depth of 15 km (9.3 mi). Initial reports by local observers suggested the epicenter may have been beneath the Mount Agung stratovolcano, however Indonesian authorities confirmed the location in the Lombok Strait.[9] The shock was felt along the eastern coast of Lombok, although no significant damage was caused there.[5][10]
As the temblor occurred during the early hours of the morning, there was significant panic; residents are reported to have fled to open fields and beaches for the rest of the night.[9]
Damage
Eighty percent of the homes and other buildings in
Relief efforts
The Indonesian Army established eleven temporary barracks in the affected region to assist those displaced. The Governor's office delivered at least 25 tonnes of rice to the displaced residents.[4]
See also
References
- ^ National Geophysical Data Center. "Significant Earthquake". Retrieved 12 June 2015.
- ^ USGS (November 8, 2008). "ShakeMap Atlas (Version 1.0)". United States Geological Survey. Archived from the original on 2017-02-08. Retrieved 12 June 2015.
- ^ Utsu, T. "Catalog of Damaging Earthquakes in the World (Through 2009)". International Institute of Seismology and Earthquake Engineering. Retrieved 10 November 2012.
- ^ Canberra Times. AAP. 21 December 1979. Retrieved 12 June 2015.
- ^ a b "Earthquake rocks Bali, kills 19". Boca Raton News. 18 December 1979. Retrieved 12 June 2015.
- doi:10.1029/jb092ib01p00441. Archived from the original(PDF) on 2013-12-11. Retrieved 10 November 2012.
- Canberra Times. AAP. 22 October 1979. Retrieved 12 June 2015.
- ^ "INDONESIA: SUMBAWA ISLAND". National Centers for Environmental Information. National Oceanic and Atmospheric Administration. Retrieved 12 June 2015.
- ^ UPI. 18 December 1979. Retrieved 12 June 2015.
- ^ a b "Indonesian Island Of Bali Rocked By Quake, 25 Die". Pittsburgh Post-Gazette. Associated Press. 19 December 1979. Retrieved 12 June 2015.
- Canberra Times. AAP. 20 December 1979. Retrieved 12 June 2015.
External links
- The International Seismological Centre has a bibliography and/or authoritative data for this event.