The apartment house on the right, a twin to the Fatality estimates range from just under 60 to more than 70 people killed, with most studies placing the number at around 60. The Northridge Earthquake: January 17, 1994. Known as the Northridge Earthquake, it caused at least 57 fatalities (a subsequent study put the death toll at 72, including heart attacks) and injured thousands. Of the sound wave unwanted sound can be studied. The 6.7 magnitude earthquake shook the entire San Fernando Valley at 4:31 am on January 17, 1994. The toppled crown atop the 95-foot high tower of a 1920 Art NORTHRIDGE, CA — Sunday marked the 27th anniversary of the 1994 Northridge Earthquake, a magnitude 6.7-scale earthquake that that killed 72, injured … NORTHRIDGE, CA — Sunday marked the 27th anniversary of the 1994 Northridge Earthquake, a magnitude 6.7-scale earthquake that that killed 72, injured 9,000, and cost $20 billion in damages, and left thousands without power. This picture shows the exterior paneling from the former second which is probably why it experienced seismic failure. The significant fracturing of welds in steel frame buildings was unexpected because of the ductility of steel. on Hollywood Boulevard in East Hollywood. The apartment house on the left has collapsed onto the former The rest are 961 aftershocks of at least magnitude 2.5 in the month following the earthquake in 1994. On January 17, 1994, at 4:31 a.m. PST, a magnitude 6​.7 earthquake centered in Northridge struck the southern California area. (photo: Gregory Davis), Damage in Hollywood Freeway at the north end of the San Fernando Valley. first-level garage. DEPTH: 18.4 km. View of cars in a partially collapsed split lower-level garage of Northridge was the epicenter of the 6.7 magnitude earthquake that occurred in the early morning of January 17, 1994 … The earthquake killed 57 people and injured thousands more in the Los Angeles area, also causing billions of dollars in damages. The two wings of the building collapsed into Some say it was a miracle that Northridge Hospital could be at the epicenter of the largest earthquake to hit Los Angeles in modern times – and still take care of patients. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. collapsed structure, did not fail. (photo: U.S. Department When earthquakes occur directly beneath a city, it will be subjected to ground motions with peak accelerations approaching the force of gravity, exceeding the levels of shaking anticipated by building codes. Rear view of a damaged three-story apartment house with a The campus was unable to use any of its classrooms because of the damage the buildings sustained. estimated at between $250 and $350 million. Workers survey the corner collapse of the Ara's Pastry store shows the structural failure produced by high vertical acceleration. earthquake. The aftermath of the earthquake saw a few cases of cynical humor earthquake. Most significantly, the state created the California Earthquake Authority, a publicly managed but privately funded organization offering basic residential earthquake insurance. (photo: Gregory Davis), Damage on Balboa Boulevard of Transportation), Southern California Earthquake Data Center, Training and Validation Data Sets for Deep Learning, Division of Geological and Planetary Sciences. ( photo: Ta-Liang Teng), I-5 & Antelope Valley Freeway Damage The Northridge earthquake resulted in 57 deaths, 1,500 serious injuries, and $42 billion worth of property damage, according to officials from the National Institute of Standards and Technology (NIST). (photo: Kerry Sieh), Health Clinic Damage Both gas and water pipes burst beneath Balboa Boulevard Understanding the cause and correcting the problem will be essential to continue building in earthquake prone regions. This was the first earthquake to strike directly under an urban area of the United States since the 1933 Long Beach earthquake. shows the closely spaced fractures in the reinforced concrete MAGNITUDE: MW6.7 Now, the recent reports of major fault activity leaving California vulnerable to another massive quake has rattled us again.. On Jan. 17, 1994 at 4:31 a.m., the Northridge earthquake … The 1994 Spring semester was delayed by two weeks due to the Northridge earthquake. LOS ANGELES (CBSLA) — Sunday marked the 27th anniversary of the deadly 1994 Northridge earthquake. This was the first earthquake to strike directly under an urban area of the United States since the 1933 Long Beach earthquake. A significant portion of the transportation system around Los Angeles was shut down, as sections of major freeways (including the Santa Monica Freeway and the Golden State Freeway) collapsed and numerous bridges sustained heavy damage. Let us know if you have suggestions to improve this article (requires login). CSUN parking structure. And in part on its northpoint performance or goals. Yet it caused more than $20 billion in damage. Moderate damage to the built environment was widespread; severe damage included collapsed buildings and highway overpasses. At 4:30 am, on January 17, 1994, residents of the greater Los Angeles area were rudely awakened by the strong shaking of the Northridge earthquake. north of the Simi Valley Freeway from the force of the main in the shaking of the Northridge earthquake. The earthquake brought home several important lessons. Accordingly, a number of legislative changes were made in the aftermath of the Northridge earthquake. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. among shattered buildings. Ring in the new year with a Britannica Membership, This article was most recently revised and updated by, https://www.britannica.com/event/Northridge-earthquake-of-1994, National Institute of Standards and Technology - Engineering Laboratory - Earthquake Northridge California 1994, Northridge earthquake of 1994 - Student Encyclopedia (Ages 11 and up). Total damage to the campus was Roads and bridges damaged by the Northridge earthquake in California, 1994. The 1994 Northridge Earthquake Northridge Earthquake: 1994 quake still fresh in Los Angeles minds after 20 years The 4:31 a.m. jolt hit Los Angeles from 11 miles deep, shaking it from its slumber w… Northridge California Earthquake January 17, 1994. Retrofits of masonry building helped reduce loss of life, hospitals suffered less structural damage than in 1971 San Fernando earthquake, and emergency response was exemplary. Tangled, collapsed stairwell at the northeast corner of the (photo: Ken Fowler), CSUN Parking Structure Damage USGS Response to an Urban Earthquake: Northridge '94. For More Information. This buckling FAULTS INVOLVED: Northridge Thrust (also known as Pico Thrust) several other faults experienced minor rupture, rupture during large aftershocks, or triggered slip (photo: Gregory Davis), CSUN Parking Structure Damage The third major earthquake to occur in the state in 23 years (after the 1971 San Fernando Valley and 1989 San Francisco–Oakland earthquakes), the Northridge earthquake was the state’s most destructive one since the San Francisco earthquake of 1906 and the costliest one in U.S. history. Magnolia avenues, Sherman Oaks. (photo: Gregory Davis), More San Fernando Valley Apartment Damage Part of Interstate 10 west of downtown Los Angeles collapsed (photo: Kerry Sieh), San Fernando Valley Apartment Damage SEE: Red Cross Disaster Relief Response to the Northridge Earthquake 27 Years Ago (Flickr) The 6.7 magnitude earthquake that struck the San Fernando Valley on Jan. 17, 1994 remains one of the costliest natural disasters in U.S. history. This 2500-car-capacity parking structure, a recent (1991) 27 years ago on Jan. 17, 1994, Northridge was struck with a magnitude 6.7 earthquake, greatly impacting Santa Clarita and other surrounding areas. Twenty-five years ago the Northridge earthquake destroyed my high school and upended our lives. an apartment house on the northeast corner of Hazeltine and The timing of the earthquake (early morning during a federal holiday) is thought to have prevented a higher death toll, as most residents were in their beds, rather than on failed freeways or in other collapsed structures (such as office buildings or parking lots). The major shock lasted 10–20 seconds and registered a magnitude of 6.7. (photo: Ken Fowler), Simi Valley Freeway Damage Despite the losses, gains made through earthquake hazard mitigation efforts of the last two decades were obvious. the Antelope Valley Freeway (State 14). TYPE OF FAULTING: blind thrust Interested in testing your earthquake knowledge? 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