The 1940 El Centro earthquake (or 1940 Imperial Valley earthquake) occurred at 21:35 Pacific Standard Time on May 18 (05:35 UTC on May 19) in the Imperial Valley in southeastern Southern California near the international border of the United States and Mexico.It had a moment magnitude of 6.9 and a maximum perceived intensity of X (Intense) on the Mercalli intensity scale. On October 15, 1979, a magnitude 6.4 (Mw) earthquake occurred about 18 miles southeast of El Centro, injuring 91 people. Earthquake losses exceed $10 million. An event on the Imperial Fault Zone in the Imperial Valley. Analysis of the El Centro differential array for the 1979 Imperial Valley earthquake Bulletin of the Seismological Society of America Peak horizontal acceleration and velocity from strong-motion records including records from the 1979 imperial valley, California, earthquake ... 5.0 magnitude earthquake. Twelve three-component strong-motion displacement records are modeled for the 1979 Imperial Valley earthquake to recover the distribution of slip on the Imperial fault p Built in 1968, Unit 4 is an oil- or gas-fired, steam-driven turbine-generator that was designed to resist a static lateral force equivalent to 20% of the dead and live load. North-south-trending crack in the sixth floor just east of the first interior row of columns (from the east face) of the Imperial County Services Building in El Centro. Earthquake Information for El Centro, California. In October of 1979, the four-unit power plant at El Centro, California, experienced an earthquake of Magnitude 6.6 on the Richter scale. TYPE OF FAULT: right-lateral strike-slip LENGTH: 69 km NEAREST COMMUNITIES: Brawley, Imperial, El Centro, Calexico, Mexicali LAST SURFACE RUPTURE: October 15, 1979, Mw6.4; May 18, 1940, Mw6.9; several other small ruptures and instances of triggered slip SLIP RATE: between 15 and 20 mm/yr The El Centro array is numbered 1 through 13. 958 El Centro Sta 8 32.81 N Alluvium , more Inst shltr Ground level 95 E Cruickshank Rd 115.53 w than 300m 117 * El Centro Sta 9 32.79 N Alluvium, more 2-story bldg Ground level 302 Commercial Av 11 5.55 w than 300m 412 El Centro Sta 10 32.78 N Alluvium , more 1-story bldg Ground 1 evel EL CENTRO, Calif. (UPI) — Aftershocks rumbled across the Imperial Valley Tuesday as Imperial County officials estimated more than $10 million in losses from Monday's earthquake, the strongest to hit the U.S. mainland in more than eight years. Two methods of analysis have been applied to the El Centro differential array data from the 1979 Imperial Valley earthquake. NOAA National Centers for Environmental Information. México was hit by 168 earthquakes with a magnitude of 4 and more in 1979. Cite as: NOAA National Geophysical Data Center (2012): Natural Hazard Images Database (Event: October 1979 El Centro, USA Images). * The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010. Abstract. The magnitude 6.9 earthquake caused $30 million property damage and injured 91 people. El Centro, CA - Array Sta 9; Imperial Valley Irrigation District - 302 Commercial: Hypocentral dist: 12.2 km The Jrperial Valley 1rrigation Dist,r'.ct permitted the array to be placed in near El Centro … The item Differential spectra for the 1979 El Centro and the 1984 Morgan Hill, California earthquakes, by G.N. However, it is a very It affected Imperial Valley in Southern California and Mexicali Valley in northern Baja California. Differential spectra for the 1979 El Centro and the 1984 Morgan Hill, California earthquakes. In 1979, a magnitude-6.5 earthquake sent violent shaking into El Centro, injuring 91 and causing so much damage to the concrete Imperial County Services Building that it had to be demolished. EL CENTRO, Calif. — A series of five small to moderate earthquakes shook the Imperial County town of El Centro Monday evening. The earthquake occurred 21 miles from Imperial, 25 miles from El Centro, 33 miles from Calexico and 43 miles from Coachella. Abstract. The Imperial fault was the source of the 1940 El Centro earthquake and the 1979 Imperial Valley earthquake. Bycroft and P.N. Earthquake of October 15, 1979, Imperial Valley, California. 411 S. Koji& 4.-El Centro Imperial County flit*tl10 h 1X l 51 made using the model to ensure that equilibrium was satisfied in both directions. Join the discussion on Facebook or Twitter and find more about temblor, tremor or quakes that have occurred in El Centro quakes. Centered at the border near Mexicali in northeast Baja California (Mexico); and El Centro, in Imperial County, Southern California (U.S.). The origin time of the 1979 Imperial Valley earthquake is 23hr16min54.5sec with an epicenter of 32.63°N, 115.33°W, or approximately 5 km south of the international border (Brady et al., 1980). Mork represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Indiana State Library. Find articles, news, videos, pictures, links and facts about El Centro. Earthquake Track Toggle navigation. An earthquake with an abrupt rocking motion at 9:51 a.m. June 22, 1915 Earthquake in the Imperial Valley wrecked the towns of Calexico and El Centro. 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