There are various names for this earthquake. One of the motivations for scheduling the original event in February 2021 was to mark the 50-year anniversary of the 1971 San Fernando earthquake, which was a seminal event in the history of Lifelines Earthquake Engineering. LOCATION: 34° 24.67' N, 118° 24.04' W. MAGNITUDE: M W 6.5. 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. Also known as the Sylmar Earthquake, the magnitude-6.5 quake was reported on a Tuesday at about 6:01 a.m. Oblique aerial view of collapsed highway over- passes and bridges at the interchange of the Foothill and Golden State Freeways. The upper and lower Van Norman dams, in northwesternmost San Fernando Valley about 20 mi (32 km) northwest of downtown Los Angeles, were severely damaged during the 1971 San Fernando earthquake. From left: Duane L. Georgeson, Jules Bergman examine damage in the aftermath of the Sylmar Earthquake / 1971 San Fernando earthquake, in the Walt Disney Television via Getty Images / GE Monogram se… 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. Print. 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 San Fernando Earthquake — sometimes referred to as the Sylmar earthquake — struck the Sylmar area right at 6 a.m. on Feb. 9, wreaking death and destruction throughout the region. Damage was locally severe in the northern San Fernando Valleyand sur… 1971 San Fernando Valley, CA earthquake (M 6.6) – damage from ground shaking (note time on clock) St_SF_EQ-39 1971 San Fernando Valley, CA earthquake (M 6.6) – Rayleigh waves crossing a field during an aftershock . According to USGS, the San Fernando quake, also known as the Sylmar earthquake, is one of the deadliest earthquakes in California history. Demonstrating the vulnerability of the modern urban society to the damaging effects of a nearby earthquake. The quake measured 6.6 on the Richter scale. Due to continuing impacts from the COVID-19 pandemic, the Lifelines 2021 Conference was rescheduled from February 2021 to February 7-11, 2022. When the Sylmar-San Fernando earthquake struck Southern California in 1971, 64 people were killed and more than 2,500 injured. Published by National Academy of Sciences / National Academy of Engineering, Washington, D.C., 1971 Feb 24, 2016 - 1971 San Fernando earthquake - Wikipedia, the free encyclopedia. As shown in the photograph at right, only a narrow shattered wall of dirt remained. An aerial view of the interchange of the Foothill and Golden State Freeways after the San Fernando earthquake in February 1971. 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. Feb 12, 2016 - 1971 San Fernando Earthquake Collapsed Freeway Overpasses Photo. At 6:00 a.m. on February 9, 1971, a magnitude 6.6 earthquake - the first large quake in the Los Angeles area in nearly 38 years -- shook the Southland, and was centered in the San Gabriel Mountains north of Sylmar. Sixty four people lost their lives in the temblor, the first significant quake since the 6.4 Long Beach Earthquake in... The earthquake that rocked the northern San Fernando Valley, near Sylmar measured magnitude 6.6 on the Richter magnitude scale. The San Fernando Fault, located 6 mi northwest of Burbank's downtown, caused the 6.6 magnitude 1971 San Fernando earthquake. San Fernando Rd. The Van Norman Dam, which at the time was the main water supply for the San Fernando Valley, was in its immediate path. Description. The unanticipated thrust earthquake had a magnitude of 6.5 on the Ms scale, and a maximum Mercalli intensity of XI (Extreme). San Francisco Earthquake 1906. found: Wikipedia, Feb. 24, 2006 (The Sylmar earthquake struck at 6:00:55 a.m. PST on the morning of February 9, 1971. That’s because a fault with the provocative name of the Santa Susana thrust exhibited a lot of movement that day, with the result being an earthquake measured at 6.6 at its epicenter. U.S. Govt. on the San Fernando Mall today, February 8, 2021, where the Peoples clothing store and the Mission City Hotel were severely damaged in the 1971 San Fernando earthquake. Sylmar, Los Angeles1971 San Fernando earthquakeAntelope ValleyEmergency! 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. 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 … The other surprise … The 1971 earthquake ruptured a subsection named the San Fernando Fault Zone, which extends from the western San Fernando Valley to Big Tujunga Wash, about 12 and a half miles (20 km) across. View the latest earthquakes on an interactive map, displaying the magnitude, location, depth and the event time. San Fernando Earthquake 1971. San Fernando Earthquake, February 9, 1971, 6:01am PST. The San Fernando Earthquake of February 9, 1971: Lessons from a Moderate Earthquake on the Fringe of a Densely Populated Region. During the early morning hours of February 9, 1971, a 6.5 magnitude earthquake centered in the Sylmar area of the San Fernando Valley shook Los Angeles. Map showing the city of San Fernando and the Sylmar and Pacoima districts of Los Angeles, which were part of the 1971 San Fernando earthquake region A59 15. The 1971 San Fernando earthquake (also known as the Sylmar earthquake) happened in the early morning of February 9 in the San Gabriel Mountains. The unanticipated thrust earthquake had a magnitude of 6.5 on the ṃ 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 two geologists Carl Wentworth and Robert Yerkes from the US Geological Survey in Pasadena later wrote that "the San Fernando fault was discovered to be active only when it ruptured the ground surface on February 9, 1971. 12:00pm-1:00pm. 1971 San Fernando (California) Earthquake Archive. 50th Anniversary of the San Fernando Earthquake. The unanticipated thrust earthquake had a magnitude of 6.5 on the Ms scale and 6.6 on the Mw scale, and a maximum Mercalli intensity of XI (Extreme). Sylmar seemed jinxed when another disaster, a few months after the earthquake, hit the area. The hospital was severely damaged six weeks after it opened during the 6.5–6.7 1971 San Fernando earthquake (February 9, 1971), which caused the collapse of the four stairwell wings, as well as the parking structure. The Joint Panel on the San Fernando Earthquake. The 1971 San Fernando-Sylmar earthquake, which measured 6.7 on the Richter scale of ground motion, occurred on a buried fault that was later named the Sierra Madre fault. 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. I was almost 11 years old at the time and the oldest of 5 daughters aged 10, 8.6.4 & 2. 341–346; No, this is not WP:OWN. It led to 64 deaths and more than $500 million in damage. With a moment magnitude of 6.7, the Northridge earthquake was the strongest earthquake to strike the Los Angeles area since the 1971 San Fernando earthquake, which also had a magnitude of 6.7. The presence in California of major universities with strong and active earthquake research San Fernando Earthquake. Pacific Fire Rating Bureau. The 1971 San Fernando earthquake shook loose a massive slide in the upstream slope of the Lower San Fernando Dam that lowered the crest about 30 feet. FAULT INVOLVED: San Fernando fault zone; minor offset reported on the eastern Santa Susana fault zone. E. … 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. It was the worst recorded quake in the city's history. The slide carried away much of the crest and upstream concrete facing of the 2,100-foot-long dam. TYPE OF FAULTING: thrust. By: Davis, Craig A., Yu, Kent, and Taciroglu, Ertugrul DOI: 10.34948/N3QP4X There has been 50-years of progress in lifeline earthquake engineering since its inception as a primary field of practice following the 1971 San Fernando Earthquake in … 1971 San Fernando M6.6 earthquake Occurring just after 6 a.m., the San Fernando Earthquake was a wake-up call in every sense. Today. Earthquake / Photos of the 1971 San Fernando Earthquake - NBC Los Angeles. The 1971 San Fernando earthquake, also known as the “Sylmar Quake,” took place on the morning of February 9, 1971 around 6:01am. The magnitude 6.6 Sylmar earthquake shook Southern California on Feb. 9, 1971, causing significant damage and 64 deaths. We lived on a quiet cul-de-sac, Del Rio Place, in Granada Hills, California. The epicenter of the quake was located in the San Gabriel Mountains, with numerous nearby Los Angeles communities affected. Because the earthquake occurred early in the morning, only three deaths resulted from this damage. The 1971 San Fernando earthquake struck at 6:00:55 a.m. PST on the morning of February 9, 1971. Fourteen persons were killed today, nine of them in hospitals as a minute-long earthquake rolled over Los Angeles and suburbs at 6:02 a.m. The San Fernando Earthquake ofFebruary 9, 1971, offered a unique opportunity to assess many ofthe important scientific, engineering, and human concerns associated with earthquakes in a modern urban environment. The 1971 San Fernando and 1994 Northridge earthquakes were two such landmarks in terms of building codes. One of the hardest-hit buildings was the just-completed San Fernando Veterans Administration Hospital, whose unreinforced concrete wings collapsed, killing at … 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. At the time, the 1971 San Fernando earthquake was the most destructive event to affect greater Los Angeles since the magnitude-6.3 Long Beach earthquake of 1933. On February 9, 1971 a 6.5 rated earthquake struck Southern California near the city of San Fernando causing 64 fatalities, 3400 injuries and over 5 million dollars in … The magnitude-6.6 temblor was the worst the region had experienced for decades. Find art you love and shop high-quality art prints, photographs, framed artworks and posters at Art.com. The epicenter was located approximately 10 km northeast of LSFD at a focal depth of approximately 9 km. 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 … Trace of the main reverse fault where it crosses Little Tujunga Road. Advances in structural dynamics by the late 1960s encouraged structural engineers to consider not only seismic forces, but also the movement or “ductility” a structure must undergo in an earthquake. The 1971 earthquake caused 58 fatalities and about 2,000 injuries. The tragic toll: 64 deaths, … DEPTH: 8.4 km. Pinterest. Teleseismic P, SV, and SH waves recorded by the WWSS and Canadian networks from the 1971 San Fernando, California earthquake (M L = 6.6) are modeled in the time domain to determine detailed features of the source as a prelude to studying the near and local field strong-motion observations. However, motions of many more buildings recorded during recent earthquakes, including the 1989 Lorna Prieta and 1994 Northridge earthquakes, are now available. The event was one in a series that affected Los Angeles county in the late 20th century. "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. The 1971 San Fernando earthquake damaged the Lower San Fernando Dam, which sits less than half-mile above the neighborhoods of the San Fernando Valley in southern California. Explore. The San Fernando earthquake has been extensively studied by many seismologists, geologists, and earthquake engineers. Today is the 40th Anniversary of the February 9, 1971 San Fernando Valley Earthquake in southern California where I grew up. Why California is Safer Because of the 1971 San Fernando Earthquake #SanFernando71 “The San Fernando Earthquake changed how the state approached earthquake hazards,” said Dr. Steve Bohlen, Acting State Geologist of California and head of the California Geological Survey. This report extracts significant facts learned from past earthquake investigations between 1971 and 1986 and covers a range of disciplines. Topics for future research are suggested. The February 9, 1971 San Fernando California Earthquake was a devastating yet seminal event which, for the first time, demonstrated the seismic threat to lifelines that fundamentally support our modern livelihoods. The 1971 San Fernando, or Sylmar, earthquake was the worst to hit an urban area of California since the 1933 magnitude-6.4 Long Beach quake. St_SF_EQ-8 1971 San Fernando Valley, CA The risk of an aftershock forced the three-day evacuation of residents of an 11-square-mile area. 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 … 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 San Fernando Earthquake ofFebruary 9, 1971, offered a unique opportunity to assess many ofthe important scientific, engineering, and human concerns associated with earthquakes in a modern urban environment. Also known as the San Fernando earthquake, the Feb. 8, 1971, magnitude-6.5 quake happened on a Tuesday at about 6:01 a.m. Its origin was in the foothills of the San … When the Sylmar-San Fernando earthquake struck Southern California in 1971, 64 people were killed and more than 2,500 injured. 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 … February 9, 1971, San Fernando Earthquake. When autocomplete results are available use up and down arrows to review and enter to select. 100% satisfaction guaranteed. The 1971 San Fernando earthquake, also known as the Sylmar quake injured thousands of people and caused 65 deaths in Los Angeles County. 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 … Three-dimensional off-fault deformation patterns of the Mw 6.6 1971 San Fernando, California earthquake Elyse Gaudreau, James Hollingsworth, Edwin Nissen, & Gareth J. Funning Submitted August 14, 2021, SCEC Contribution #11407, 2021 SCEC Annual Meeting Poster #TBD The distribution of on- and off-fault coseismic surface deformation along a fault zone provides information on earthquake … Earthquake / Photos of the 1971 San Fernando Earthquake - NBC Los Angeles. on the San Fernando Mall today, February 8, 2021, where the Peoples clothing store and the Mission City Hotel were severely damaged in the 1971 San Fernando earthquake. San Diego. 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 San Fernando Earthquake of 1971 (also known as Sylmar earthquake occurred) to February 9, 1971 at 6:00:55 am local time (14:00 UTC) in the San Fernando Valley near Sylmar, a suburb of Los Angeles, with a magnitude M w of 6.6.. The earthquake is known by different names. The earthquake was generated by thrust faulting on the Sierra Madre fault. An investigation of the geologic-seismologic setting of the Van Norman area indicates that an earthquake of at least M 7.7 may be expected in the Van Norman area. Evolving Codes: Ductility Example. On February 9, 1971, the magnitude 6.5 San Fernando earthquake in the suburbs of Los Angeles was one big surprise that day. The event was one in a series that affected the Los Angeles area in the late … 1971 San Fernando Earthquake Collapsed Freeway Overpasses About This Piece Interstate and Highway were closed the inland main highway from Los Angeles to San Francisco The quake measured on the Richter Scale Sylmar California Feb Cultural Art Never lose touch with your roots or embrace a new culture with world art. The unanticipated thrust earthquake had a magnitude of 6.5 on the Ms scale, and a maximum Mercalli intensity of XI (Extreme). The 1971 San Fernando Earthquake, by Bob Burnside. 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