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1973 Point Mugu earthquake

From Wikipedia, the free encyclopedia

1973 Point Mugu earthquake
1973 Point Mugu earthquake is located in California
McFarland
McFarland
San Luis Obispo
San Luis Obispo
Cantil
Cantil
Palm Springs
Palm Springs
San Diego
San Diego
1973 Point Mugu earthquake
UTC time1973-02-21 14:45:57
ISC event764165
USGS-ANSSComCat
Local dateFebruary 21, 1973
Local time06:45:57 PST [1]
Magnitude5.8 Mw [1]
Depth10 km (6.2 mi) [1]
Epicenter34°02′N 119°02′W / 34.04°N 119.03°W / 34.04; -119.03 [1]
TypeOblique-slip [2]
Areas affectedSouth Coast (California)
United States
Total damage$1,000,000 [3]
Max. intensityVII (Very strong) [3]
Peak acceleration.13g [2]
CasualtiesSeveral injured [4]

The 1973 Point Mugu earthquake occurred at 06:45:57 local time on February 21 in the Point Mugu area of southeastern Ventura County of southern California. It had a moment magnitude of 5.8 and a maximum Mercalli Intensity of VII (Very strong). This oblique-slip shock resulted in several injuries and $1 million in damage. The epicenter was near the Oxnard Plain and the northern terminus of the Santa Monica Mountains, in the California South Coast region.

Intensity

At the most extreme points of its perceptibility along the coast, it was felt between intensity I and III (Not felt – Weak) at San Luis Obispo in the north and San Diego in the south. Inland, it was felt at McFarland in the central valley and Cantil in the western Mojave Desert, and to the southeast in Palm Springs.[5]

See also

References

  1. ^ a b c d ISC (2017), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2013), Version 4.0, International Seismological Centre
  2. ^ a b Ellsworth, W. L.; Campbell, R. H.; Hill, D. P.; Page, R. A.; Alewine, III, R. W.; Hanks, T. C.; Heaton, T. H.; Hileman, J. A.; Kanomori, H.; Minster, J. H.; Whitcomb, J. H. (1973), "Point Mugu, California, Earthquake of 21 February 1973 and Its Aftershocks", Science, 182 (417): 1127–9, Bibcode:1973Sci...182.1127E, doi:10.1126/science.182.4117.1127, PMID 17810814
  3. ^ a b Stover, C. W.; Coffman, J. L. (1993), Seismicity of the United States, 1568–1989 (Revised) – U.S. Geological Survey Professional Paper 1527, United States Government Printing Office, pp. 92, 159, 160
  4. ^ USGS (September 4, 2009), PAGER-CAT Earthquake Catalog, Version 2008_06.1, United States Geological Survey
  5. ^ Coffman, J. L.; von Hake, C. A.; Spence, W.; Carver, D. L.; Covington, P. A.; Gunthy, G. J.; Irby, W. L.; Person, W. J.; Stover, C. W. (1984), "United States earthquakes, 1973", Joint Annual Report National Oceanic and Atmospheric Administration, Open-File Report 84-973: 27–33, Bibcode:1975noaa.rept.....C

External links

This page was last edited on 15 February 2020, at 10:02
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