1994 Liwa earthquake

1994 Liwa earthquake
Date February 15, 1994 UTC (February 16, 1994 local time)
Magnitude 7.0 Mw
Depth 23 kilometres (14 mi)
Epicenter 4°58′01″S 104°18′07″E / 4.967°S 104.302°ECoordinates: 4°58′01″S 104°18′07″E / 4.967°S 104.302°E
Areas affected Indonesia

The 1994 Liwa earthquake occurred on February 15, 1994 at 17:07 UTC (on February 16, 1994 at 00:07 local time). It was located in southern Sumatra, Indonesia. The magnitude of the earthquake was put at Mw 6.9, Mw 7.0, or Ms 7.2, according to different sources.[1][2][3][4]

The earthquake caused 207 deaths and 2000 injured. There was damage from landslides, mudslides, and fires in Lampung Province. Power outage occurred in western Lampung.[5] 6000 buildings were damaged or destroyed by landslides in the Liwa area. In addition to southern Sumatra, the earthquake could be felt in western Java and Singapore.[1] Intense smoke and gas activity was observed in the Suwoh volcanic area.[4]

The earthquake took place at the Sumatran Fault Zone. The Sumatran Fault Zone is 1900 km long and highly segmented. It can be divided into about 20 segments.[2] The earthquake occurred in a subparallel strand 2.5 km southwest of the principal trace of the Kumering segment.[3][6] The focal mechanism is of right-lateral strike-slip faulting.[4]

References

  1. 1.0 1.1 http://earthquake.usgs.gov/earthquakes/eqarchives/significant/sig_1994.php
  2. 2.0 2.1 https://www.eeri.org/lfe/pdf/Indonesia_WesternSumatra_SR_May07.pdf
  3. 3.0 3.1 "The Sumatran Fault Zone - From Source to Hazard" by D. H. Natawidjaja and W. Triyoso
  4. 4.0 4.1 4.2 "Aftershock sequence of the 1994, Mw 6.8, Liwa Earthquake (Indonesia): Seismic Rupture process in a volcanic arc" by C. Widiwijayanti, J. Déverchère, R. Louat, M. Sébrier, H. Harjono, M. Diament, and D. Hidayat
  5. http://www.apnewsarchive.com/1994/Earthquake-Kills-134-on-Sumatra-Hundreds-Injured/id-8fec72ae72b90a75da6a8ad70ce9ce65?SearchText=1994%20sumatra%20earthquake;Display_
  6. http://authors.library.caltech.edu/21722/1/Sieh2000p28295_Jour_Geophys_Res.pdf