1972 Ruisui earthquake

The 1972 Ruisui earthquake (also known as the 1972 Juisui earthquake) occurred on April 24 at 17:57 local time. The magnitude of this earthquake was given as Ms 7.2[1] by the United States Geological Survey and ML 6.9 by the Central Weather Bureau of Taiwan.[2] The epicenter was located near Ruisui Township, Hualien County, Taiwan. The intensity was shindo 4 in Taipei and Hualien.[3] Five people were reported dead. The Ruisui Bridge (Chinese: 瑞穗大橋) was destroyed.[4] The water treatment plant in Ruisui was damaged.

1972 Ruisui earthquake
UTC time1972-04-24 09:57:21
ISC event774714
USGS-ANSSComCat
Local dateApril 24, 1972 (1972-04-24)
Local time17:57:21
Magnitude7.2 Ms
Depth15 km
Epicenter23.5°N 121.4°E / 23.5; 121.4
Areas affectedTaiwan
Casualties5

This earthquake was caused by the Juisui Fault with a vertical movement of 70 centimeters (28 in).[5][6] The Juisui Fault is a segment of the 150 kilometers (93 mi) long Longitudinal Valley Fault, which is a left-lateral fault with a reverse component.[7] The boundary between the Eurasian Plate and the Philippine Plate lies along the Longitudinal Valley Fault.[8]

See also

References
  1. "Tectonic Summary Magnitude 7.6 TAIWAN 1999 September 20 17:47:18 UTC". USGS Earthquake Hazard Program. Archived from the original on 2010-01-18. Retrieved 2010-12-29.
  2. "地震百問" (PDF) (in Chinese). Archived from the original (PDF) on 2010-12-25. Retrieved 2010-12-29.
  3. "台灣的地震與防災教育" (PDF) (in Chinese). Archived from the original (PDF) on 2012-03-16. Retrieved 2010-12-29.
  4. "瑞 穗 鄉 志 大 事 記" (PDF) (in Chinese). Archived from the original (PDF) on 2011-08-15. Retrieved 2010-12-29.
  5. "表1-3：花蓮縣地震斷層概況" (in Chinese). Archived from the original on 2011-08-17. Retrieved 2010-12-29.
  6. "unknown" (PDF) (in Chinese). Archived from the original (PDF) on 2020-05-30.
  7. http://twgeoref.moeacgs.gov.tw/storage/2008%5C20080070/eab.pdf%5B%5D
  8. Hickman, John B; Wiltschko, David V; Hung, Jih-Hao; Fang, Peng; Bock, Yehuda (2002), "Structure and evolution of the active fold-and-thrust belt of southwestern Taiwan from Global Positioning System analysis", Special Paper 358: Geology and geophysics of an arc-continent collision, Taiwan, 358, p. 75, doi:10.1130/0-8137-2358-2.75, ISBN 978-0-8137-2358-7


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