Mandatory Credit: Al Markado/ The Los Angeles TimesME.Quake71.#3.1Ð22Ðms2.7.$.Los Angeles Times Contributor: Larry Sharkey (retired), The Ground Beneath our Feet: A Hundred Years of Earthquakes in Los Angeles. The quake took place at 6 am under the town of Sylmar. The San Fernando earthquake has been extensively studied by many seismologists, geologists, and earthquake engineers. The map shows thelocation ofthe epicenter ofthe main shock (magnitude 6.6) and ofrepresentative aftershocks (magnitudes greater than 3) through March 1, 1971. Nov 18, 2015 - 1971 San Fernando earthquake - Collapse of four buildings at the Veterans Hospital - The earthquake killed 60 and cost $1 billion in damages. In early 1971, the San Fernando Valley was the scene of a dense network of strong … … C. R. Allen and his co‐workers assigned the main shock parameters: 34°24.7′N, 118°24.0′W, focal depth h = 8.4 km, and local magnitude M L = 6.4. 4. The Olive View Medical Center was most adversely affected when a newly finished six story psychiatric ward collapsed, as well as the Veteran Administration Hospital in Sylmar. What became known as the Sylmar or San Fernando earthquake hit L.A. seconds after 6 a.m. with a magnitude of 6.6 in the foothills of the San Gabriel Mountains. 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 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). However, twenty-one years later the Newhall Pass Interchange would collapse again in almost the exact same location during the 1994 Northridge earthquake. Adjustment here. Residents along the 405 Freeway were evacuated for days until the dam was shored up and determined to be safe. The 1971 San Fernando earthquake (also known as the Sylmar earthquake) happened in the early morning of February 9 in the San Gabriel Mountains.It was at the northern edge of the San Fernando Valley in southern California.The quake measured 6.6 on the Richter scale.The damage was severe near the San Fernando Valley. SAN FERNANDO EARTHQUAKE, FEBRUARY 9, 1971. But the threat of disaster didn't end when the shaking stopped. 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 its wake. San Fernando Valley Earthquake - 1971 - YouTube. Event Report No. In the San Fernando earthquake, the number of deaths (65), of people sustaining serious injuries (over 1,000) and amount of major structural damage was almost entirely confined to portions of San Fernando and Tujunga Valleys, and the Newhall-Saugus area (map, page 62). The aftermath led to major changes for building construction and the Alquist-Priolo Act. Approximate traces ofsome ofthe faulting activated during … Copy link. 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 ). 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 Valley Earthquake - 1971. The Ground Beneath our Feet: A Hundred Years of Earthquakes in Los Angeles. 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. Evidence is presented which suggest that the 1971 San Fernando earthquake may have been a double event that occurred on two separate, subparallel thrust faults. The epicenter of the quake was located in the San Gabriel Mountains, with numerous nearby Los Angeles communities affected. Sixty … Share. Much like the Northridge Earthquake 23 years later, the quake also tore apart freeway overpasses. Orig. It is postulated that the initial event took place at depth on the Sierra Madre fault zone which runs along the base of the San Gabriel Mountains. But at 42 seconds after 6 a.m. on a Tuesday morning 25 years ago this week, Feb. 9, 1971, the Sylmar-San Fernando earthquake hit the Valley and … The San Fernando earthquake (also known as the Sylmar earthquake) was a magnitude 6.6 earthquake that struck on February 9th, 1971 at 6:00 AM PST. Aug 27, 2015 - 1971 san fernando earthquake - Google Search Print. Part of the dam crumbled in the quake, and more damage was reported with each aftershock. With regards to the 5/14 overpass collapsing twice, it's not actually ironic that it collapsed... Dead link. It caused hospitals and schools to collapse, brought down sections of elevated freeways and cost 64 people their lives. San Fernando, California, earthquake of 9 February 1971 Item Preview > ... San Fernando, California, earthquake of 9 February 1971 by Oakeshott, Gordon B., 1904-Publication date 1975 Topics Earthquakes Publisher Sacramento : California Division of Mines and Geology Collection caminesgeo; ucdavis; americana Digitizing sponsor Kahle/Austin Foundation and Omidyar Network Contributor … I was almost 11 years old at the time and the oldest of 5 daughters aged 10, 8, 6, 4 & 2. The unreinforced concrete wings of the V.A Hospital, built in 1925, toppled leaving 47 dead and numerous victims trapped below the wreckage. 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. Select from premium 1971 San Fernando Earthquake of the highest quality. 1971 San Fernando earthquake - Collapse of four buildings at the Veterans Hospital - The earthquake killed 60 and cost $1 billion in damages. Find the perfect 1971 San Fernando Earthquake stock photos and editorial news pictures from Getty Images. "Anytime" came Feb. 9, 1971, when the Santa Clarita and San Fernando valleys were devastated by the 6.6-magnitude "Sylmar" earthquake, aka San Fernando earthquake, whose actual epicenter was in the Iron Canyon section of Sand Canyon in the SCV. Strong motion. The Newhall Pass infrastructure project which is located northwest of the San Fernando Valley in Weldon Canyon and less than eight miles from two other major freeway interchanges, prompted Councilman Donald Lorenzen to criticize conglomeration of freeways and connectors as “putting too many eggs in one basket.” The majority of damage to freeway structures during the “Sylmar Quake” ranged from minor cracking and slanting to the complete destruction of major sections of the interchange bridges. 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. The 6.6 magnitude earthquake with an epicenter located along a 12 mile fault zone below the San Gabriel Mountains lasted approximately 12 seconds and affected the entire San Fernando Valley. The largest events in the San Fernando earthquake series, initiated by the main shock at 14h 00m 41.8s UT on February 9, 1971, were chosen for analysis from the first three months of activity, 87 events in all. On Feb. 9, 1971, the deadly San Fernando Earthquake rattled Southern California, leaving more than 60 people dead and causing more than $500 million in … Watch later. Info. Full Record; Other Related Research; Publication Date: Sat Jan 01 00:00:00 EST 1972 Research Org. The 1971 San Fernando earthquake with a 6.6 magnitude and large aftershocks caused over $500 million in damages and destruction to infrastructure; including the collapsed freeway overpasses on the Interstate freeways 5, 14, and 210, destruction of several hospitals in the North Los Angeles area, and damage to the Van Norman Dam in Granada Hills. 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. Also known as the Sylmar Earthquake, the magnitude-6.5 quake was reported on a Tuesday at about 6:01 a.m. Its origin was in the foothills of the San Gabriel Mountains north of Los Angeles, but shaking was felt across a widespread part of the San Fernando Valley. On February 9, 1971, a magnitude 6.6 earthquake in California’s San Fernando Valley claimed 65 lives. 1971 San Fernando (California) Earthquake Archive 1971 2/09 14:01 UTC 34.40N 118.39W 5km deep Ms=6.5, San Fernando, California The death toll of this earthquake was about 58, but the property damage was enormous. FIGURE 1 The San Fernando Earthquake ofFebruary 9, 1971. The San Fernando earthquake occurred in 1971 with a magnitude of 6.6. It was at the northern edge of the San Fernando Valley in southern California. No need to register, buy now! The damage was severe near the San Fernando Valley. The dam, which crumbled during the earthquake and during the following aftershocks, held approximately 3.6 billion gallons of water. 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 … The San Fernando earthquake caused approximately 65 deaths, up to 1,000 personal injuries, and resulted in over 500 million dollars in damages. 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 Shopping. The Rose Parade Just Sneak-Peek'd a Few 2022 Floats, SoCal Reopenings: Get Info on Museums, Aquariums, Theme Parks, Theaters, This New Disneyland-Themed Auction Is Full of Joyful Gems, ‘Snow White's Enchanted Wish' Debuts at Disneyland, Copyright © 2021 NBCUniversal Media, LLC. 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. There was fear of an imminent collapse of the Van Norman Dam, which held more than 3.5 billion gallons of water just northwest of San Fernando. The 1971 San Fernando earthquake, also known as the “Sylmar Quake,” took place on the morning of February 9, 1971 around 6:01am. Find art you love and shop high-quality art prints, photographs, framed artworks and … Find the perfect 1971 san fernando earthquake stock photo. 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. The 1971 San Fernando earthquake, also known as the “Sylmar Quake,” took place on the morning of February 9, 1971 around 6:01am. On Feb. 9, 1971, the deadly San Fernando Earthquake rattled Southern California, leaving more than 60 people dead and causing more than $500 million in property damage. Below, a look back at the 1971 Sylmar Earthquake. The 6.6 magnitude earthquake with an epicenter located along a 12 mile fault zone below the San Gabriel Mountains lasted approximately 12 seconds and affected the entire San Fernando Valley. May 27, 2013 - 1971 San Fernando Earthquake Collapsed Freeway Overpasses Photo. Six Interesting Facts About the 1971 Sylmar Earthquake SYLMAR - It seemed from summer 1965 until 1971 it was a chaotic time in Southern California. We lived on a quiet cul-de-sac at 16960 Del Rio Place, in… Tap to unmute. Forty-six years ago today, the possibility of such a sudden dam burst was the hair-raising fear, in the chaos and devastation following the magnitude 6.7 earthquake that struck the San Fernando Valley north of Los Angeles. It bans construction on active faults in California. The quake measured 6.6 on the Richter scale. The unanticipated thrust earthquake had a magnitude of 6.5 on the M s scale, and a maximum Mercalli intensity of XI (Extreme).The event was one in a series that affected the Los Angeles area in the late … 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. Today is the 40th Anniversary of the February 9, 1971 San Fernando Valley Earthquake in southern California where I grew up. Talk:1971 San Fernando earthquake Epicenter location. Both the Veteran's Administration Hospital and Olive View Medical Center in Sylmar were severely damaged, accounting for many of the deaths. The 1971 San Fernando earthquake (also known as the Sylmar earthquake) happened in the early morning of February 9 in the San Gabriel Mountains. On February 9th, 1971, magnitude 6.6 earthquake shook the San Fernando Valley in southern California for 12 seconds. It was the first strong quake to hit the area since the 1893 Pico Canyon quake, … The Newhall Pass was rebuilt and finished in 1973 with the institution of new earthquake safety standards and additional steel rebar reinforcement. Irony. 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 the Los Angeles metropolitan … All rights reserved. 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. Around 80,000 residents were required to evacuate from the area for three days due to fears that the whole area would be flooded by the dam’s water reserve. 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