Mandatory Credit: Brue Cox/ The L.A. Times/ ME.Quake71.1.1Ð22Ðm2.7.$LA Times staff writer: Kenneth Reich, 2/4/1996/ Los Angeles Daily News writer: Dana Bartholomew,2/8/2016/ NBC Los Angeles writer: Jonathan Lloyd, 2/8/2019. San Fernando earthquake Sylmar 6.6 Richter scale 1971 damage collapse building parking structure emergency temblor shake crack Major damage was concentrated at the Newhall Pass Interchange, which was under construction at the time of the 1971 San Fernando earthquake in Southern California. The San Fernando, California, earthquake of February 9, 1971; a preliminary report published jointly by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration : Series title: Professional Paper: Series number: 733: DOI: 10.3133/pp733: Edition-Year Published: 1971: Language: ENGLISH: Publisher: U.S. Govt. SMIP’s data influences building codes, resulting in structures that are more earthquake resistant. The event was one in a series that affected the Los Angeles area in … The quake took place at 6 am under the town of Sylmar. The Newhall Pass was rebuilt and finished in 1973 with the institution of new earthquake safety standards and additional steel rebar reinforcement. The San Fernando earthquake has been extensively studied by many seismologists, geologists, and earthquake engineers. After the San Fernando … 1. San Fernando Earthquake Series, 1971' Focal Mechanisms and Tectonics JAMES H. WHITCOMB, CLARENCE R. ALLEN, JAN D. GARMANY AND JAMES A. HILEMAN Seismological Laboratory, California Institute of Technology Pasadena, California 91109 The largest events in the San Fernando earthquake series, initiated by the main shock at 14h 00m 41.8s UT on February 9, 1971… The Ground Beneath our Feet: A Hundred Years of Earthquakes in Los Angeles. San Fernando Earthquake. 4-5. It led to 64 deaths and more than $500 million in damage. Landslide headscarp caused by … If it no longer meets these criteria, you can reassess it. THE 1971 SAN FERNANDO EARTHQUAKE An hour before sunrise, at 6:01 AM, PST, on February 9, 1971, the San Fernando region was struck by one of the most devastating earthquakes in California history. 100% satisfaction guaranteed. The 1971 San Fernando Earthquake. Five decades later, the San Fernando Earthquake has had a lasting impact on the Southland and across the nation. California is safer because of the 1971 earthquake. If you remember feeling the earthquake in '71, go contribute to the DYFI map: It looks like your browser does not have JavaScript enabled. The 1971 San Fernando earthquake (also known as the Sylmar earthquake) occurred in the early morning of February 9 in the foothills of the San Gabriel Mountains in southern California. The 1971 earthquake illustrated the need for better coordination between scientists, engineers, and emergency responders and led to the establishment of the first Earthquake Clearinghouse. https://www.conservation.ca.gov/.../Earthquake-San-Fernando-1971.aspx 24, No. Although the Richter magnitude of the tremblor was 6.6, ranking it as moderate to large, but not great, it shook a wide, heavily populated area, leaving death and destruction in … The 1971 San Fernando earthquake, also known as Sylmar earthquake, struck the San Fernando Valley near Sylmar at 6:00:55 a.m. PST on Feb. 9, 1971, with a magnitude of 6.6. Visit our Story Map: Remembering the San Fernando Earthquake of 1971 to see then-and-now photos, and to learn more about the Alquist-Priolo Earthquake Fault Zoning Act, one of four pieces of major legislation that resulted from the earthquake. Choisissez parmi des contenus premium 1971 San Fernando Earthquake de la … Following the San Fernando Earthquake, new seismic safety building codes and legislation such as the Alquist-Priolo Act, which bans development near active fault lines in California, were put into place. The San Fernando earthquake, 1971: Assessed at Richter magnitude 6.6, it occurred in the mountains behind Sylmar. If you can improve it further, please do so. The California Geological Survey reviews the geotechnical and seismic aspects of hospital and public school construction throughout California. The unanticipated thrust earthquake had a magnitude of 6.5 on the Ms scale, and a maximum Mercalli intensity of XI (Extreme). Earthquake disasters are sudden and are in a different category from other mishaps. The unanticipated thrust earthquake had a moment magnitude of 6.5 or 6.7 (as determined by several independent institutions) and had a maximum Mercalli intensity of XI ( Extreme ). On February 9, 1971 at 6:01 am PST, a devastating M6.6 earthquake struck the densely populated metropolitan area of Los Angeles, leaving death and destruction in its wake. In this regard, the 1971 San Fernando (ML =6.4) and the 1994 Northridge (ML =6.4) earthquakes offer a rare opportunity to compare the effects of two similar size earthquakes that occurred within the same environment (both earthquakes occurred on blind thrust faults, not previously mapped on hazard maps, underneath the densely populated San Fernando Valley of … It caused hospitals and schools to collapse, brought down sections of elevated … Five decades later, the San Fernando Earthquake has had a lasting impact on the Southland and across the nation. Source: California Integrated Seismic Network. • The epicenter of the magnitude 6.6 disastrous earthquake was in the foothills of the San Gabriel Mountains, at the northeastern edge of the Valley. Also known as the Sylmar Earthquake, this earthquake occurred on the San Fernando fault zone, a … The greatest damage was in the San Fernando area northwest of Los Angeles. The United States Geological Survey is still accepting "felt" reports for historic earthquakes.
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