1933 Long Beach earthquake

1933 Long Beach earthquake
Damage to the John Muir School, Pacific Avenue, Long Beach
1933 Long Beach earthquake is located in California
1933 Long Beach earthquake
Los Angeles
Los Angeles
UTC time1933-03-11 01:54:00
ISC event905457
USGS-ANSSComCat
Local dateMarch 10, 1933 (1933-03-10)
Local time5:54 P.M. PST[1]
Magnitude6.4 Mw[2]
Depth10 km (6.2 mi)[2]
Epicenter33°37′52″N 118°00′00″W / 33.631°N 118.000°W / 33.631; -118.000[3]
FaultNewport-Inglewood Fault[4]
TypeStrike-slip[5]
Areas affectedSouth Coast (California)
United States
Total damage$40 million[1]
Max. intensityMMI VIII (Severe)[1]
Peak acceleration0.22 g[6]
Peak velocity20 cm/s (est)[7]
TsunamiNo
AftershocksM5.4 on Oct 2 1933[8]
Casualties115–120 killed[1][9]

The 1933 Long Beach earthquake took place on March 10 at 5:54 P.M. PST south of downtown Los Angeles. The epicenter was offshore, southeast of Long Beach, California, on the Newport–Inglewood Fault.[10] The earthquake had a magnitude estimated at 6.4 Mw, and a maximum Mercalli intensity of VIII (Severe). Damage to buildings was widespread throughout Southern California. It resulted in 115 to 120 fatalities and an estimated $40 million worth of property damage, equivalent to $941 million in 2023. The majority of the fatalities resulted from people running out of buildings exposing themselves to the falling debris.

  1. ^ a b c d Cite error: The named reference Stover was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference ISC-GEM was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference USGS was invoked but never defined (see the help page).
  4. ^ "Southern California Earthquake Data Center: Long Beach Earthquake". Southern California Earthquake Data Center. Retrieved 2021-10-26.
  5. ^ Cite error: The named reference Hauksson was invoked but never defined (see the help page).
  6. ^ "The 1933 Long Beach Earthquake".
  7. ^ Hough, S. E.; Graves, R. W. (22 June 2020). "Nature:The 1933 Long Beach Earthquake (California, USA) Ground Motions and Rupture Scenario". Scientific Reports. 10 (1): 10017. Bibcode:2020NatSR..1010017H. doi:10.1038/s41598-020-66299-w. PMC 7308333. PMID 32572047.
  8. ^ Hough, S. E.; Graves, R. W. (22 June 2020). "Nature:The 1933 Long Beach Earthquake (California, USA) Ground Motions and Rupture Scenario". Scientific Reports. 10 (1): 10017. Bibcode:2020NatSR..1010017H. doi:10.1038/s41598-020-66299-w. PMC 7308333. PMID 32572047.
  9. ^ Cite error: The named reference NGDC was invoked but never defined (see the help page).
  10. ^ "Southern California Earthquake Data Center: Long Beach Earthquake". Southern California Earthquake Data Center. Retrieved 2021-05-01.