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1956 Chim earthquake

Earthquake

Earthquake

FieldValue
title1956 Chim earthquake
tagsyes
timestampdoublet
timestamp-A1956-03-16 19:32:43
timestamp-B1956-03-16 19:43:31
isc-event-A888079
isc-event-B888080
anss-url-Aiscgemsup888079
anss-url-Biscgem888080
local-date
local-time21:32:43
magnitude-A5.3
magnitude-B5.5
map2{{Location mapLebanon
reliefyes
lat33.78
long35.58
markBullseye1.png
marksize40
positiontop
width250
floatright
caption}}
location
countries affectedLebanon
casualties136 dead

| timestamp-A = 1956-03-16 19:32:43 | timestamp-B = 1956-03-16 19:43:31 | isc-event-A = 888079 | isc-event-B = 888080 |anss-url-A = iscgemsup888079 |anss-url-B = iscgem888080 |local-date = |local-time = 21:32:43 |magnitude-A = 5.3 |magnitude-B = 5.5

The 1956 Chim earthquake was a destructive multiple-shock event that occurred on March 16 in Lebanon along a strand of the Dead Sea Transform (DST) fault system. The epicenter was located in the south of Lebanon in the Chouf District. Six thousand homes were destroyed and another 17,000 were damaged. The number of persons killed was 136.

Tectonic setting

The DST is a 1609 km long transform fault that runs in a mostly north–south direction from the northern end of the Red Sea along the Jordan Rift Valley to the Taurus Mountains complex in southern Turkey. The left-lateral fault zone marks the boundary of the Arabian plate and the Sinai-Levantine block and consists of multiple parallel faults. As the fault moves through Lebanon and Syria the fault trace follows a restraining bend and splits into several strands that include the Serghaya, Rachaya, and Roum faults, as well as the prominent Yammouneh fault.

Earthquake

The Roum fault runs for a length of 35 km between the Hula basin the Awali river and is the westernmost strand of the fault system in that area. A paleoseismic trench investigation revealed that it may have been the source of the twin-shock event.

The twin shocks were separated by less than fifteen minutes with the first event occurring at 19:32 and the second event at 19:43 hours. The initial shock was estimated to measure ( = 5.3) and the second event was rated ( = 5.5).

References

References

  1. Galey, Patrick. (March 12, 2010). "Scientists predict large Lebanon earthquake looming". [[The Daily Star (Lebanon).
  2. (1956). "United States Earthquakes". [[United States Department of Commerce]] / [[UNited States Coast and Geodetic Survey]].
  3. (2005). "Sources of the large A.D. 1202 and 1759 Near East earthquakes". Geology.
  4. (2000). "Remote Earthquake Triggering along the Dead Sea Fault in Syria following the 1995 Gulf of Aqaba Earthquake (Ms = 7.3)". Seismological Research Letters.
  5. (2006). "Evidence of coseismic ruptures along the Roum fault (Lebanon): a possible source for the AD 1837 earthquake". Journal of Structural Geology.
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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