1968 Sulawesi earthquake

The 1968 Sulawesi earthquake struck Indonesia on August 14. It had a Richter magnitude of 7.4, spawned a large tsunami, and killed roughly 200 people.

1968 Sulawesi earthquake and tsunami
1968 Sulawesi earthquake is located in Indonesia
1968 Sulawesi earthquake
1968 Sulawesi earthquake is located in Sulawesi
1968 Sulawesi earthquake
UTC time1968-08-14 22:14:23
ISC event818025
USGS-ANSSComCat
Local dateAugust 15, 1968 (1968-08-15)
Local time06:14:23
Magnitude7.4 ML
7.2 Mw(USGS)
Depth17 km (11 mi)[1]
Epicenter0°04′N 119°41′E / 0.06°N 119.69°E / 0.06; 119.69[1]
FaultPalu-Koro fault
Areas affectedIndonesia
Max. intensityMMI IX (Violent)
Casualties213 killed

Damage and casualties

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The earthquake had a Richter magnitude of 7.4. It created a tsunami with wave heights of 8 m (26 ft) to 10 m (33 ft), which soon traveled onto Sulawesi. The most extensive waves reached 300 m (980 ft) inland, destroying 700 homes and killing around 200 people.[2]

Geology

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The earthquake ruptured along Palu-Koro fault[3] in Manimbaja Bay. It caused subsidence that decreased elevations by as much as 2 m (6 ft 7 in) to 3 m (9.8 ft) along the coast. It also appeared to uplift at least one of the Togian Islands.[2]

The earthquake was near the Celebes Sea; it sank the island of Tuguan.[4]

See also

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References

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  1. ^ a b 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. 682. ISBN 978-0124406520.
  2. ^ a b "Today in Earthquake History: August 14". United States Geological Survey. October 2, 2012. Retrieved August 14, 2013.
  3. ^ Watkinson I.M.; Hall R. (2016). "Fault systems of the eastern Indonesian triple junction: evaluation of Quaternary activity and implications for seismic hazards" (PDF). In Cummins P.R.; Meilano I. (eds.). Geohazards in Indonesia: Earth Science for Disaster Risk Reduction. Geological Society, London, Special Publications. Vol. 441. pp. 71–120. Bibcode:2017GSLSP.441...71W. doi:10.1144/SP441.8. ISBN 9781862399662. S2CID 132297395. {{cite book}}: |journal= ignored (help)
  4. ^ Newsletter, International Tsunami Information Center, 1968
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