- 1933 Long Beach earthquake
Earthquake
title=1933 Long Beach earthquake
date= 11 March 1933 (UTC)
magnitude = 6.4 Mw
depth=convert|10|km|mi|sp=us
location=coord|33.63|N|118.00|W|region:US|display=inline
countries affected = USA (Southern California )
intensity = VIII
casualties = 115 killedThe Long Beach earthquake of 1933 took place on
March 10 ,1933 at 17:55 PST (March 11 , 01:55 UTC), with a magnitude of 6.4, causing widespread damage to buildings throughoutSouthern California . The epicenter was offshore, southeast of Long Beach on theNewport-Inglewood Fault . Forty million dollars property damage resulted, and 115 lives were lost. Many of these fatalities occurred as people ran out of buildings and were hit by falling debris.The major damage occurred in the thickly settled district from Long Beach to the industrial section south of Los Angeles, where unfavorable geological conditions (made land, water-soaked
alluvium ) combined with poor structural work to increase the damage. At Long Beach, buildings collapsed, tanks fell through roofs, and houses displaced on foundations. School buildings were among those structures most generally and severely damaged.The earthquake eliminated all doubts regarding the need for earthquake resistant design for structures in California. So many school buildings were damaged that the
Field Act was passed by theCalifornia State Legislature onApril 10 1933 . The Field Act mandated that school buildings must be earthquake-resistant. If the earthquake had occurred during school hours, the death toll would have been much higher.The earthquake struck during the filming of the comedy "International House" (1933), and film exists of the quake striking the soundstage during shooting.
The earthquake also interrupted filming of "The Shadow Waltz," a musical scene in "Gold Diggers of 1933", nearly throwing choreographer
Busby Berkeley from a camera boom, and rattling dancers on a convert|30|ft|m|sing=on-high platform.External links
* [http://earthquake.usgs.gov/regional/states/events/1933_03_11.php USGS Historical Earthquakes - Long Beach, California]
* [http://www.scec.org/education/030310longbeach.html Long Beach Earthquake: 70th Anniversary]
* [http://nisee.berkeley.edu/long_beach/long_beach.html National Information Service on Earthquake engineering page about Long Beach earthquake]
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