The 1994 M6.7 Northridge, CA Shakemap showing MMI (Modified Mercalli Intensity) levels of shaking, with the earthquake epicenter shown as a red star, and the fault shown as a rectangle. Below, this map features locations of some of the hardest hit areas and archived video of NBC4 reports. Sunday is the 27th anniversary of the 1994 Northridge Earthquake. Segments of local coverage on the Northridge Earthquake and aftershocks from the ABC O&O in Los Angeles. The pe… The name is not going to change, scientists at Caltech and the U.S. Geological Survey insisted Tuesday. 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. At 4:31 a.m. on January 17, 1994, a 6.7-magnitude quake struck the San Fernando Valley, a densely populated area of Los Angeles located 20 miles northwest of the city’s downtown. Northridge was the epicenter of the 6.7 magnitude earthquake that occurred in the early morning of January 17, 1994 killing dozens of people and damaging numerous structures and freeways throughout southern California. All rights reserved. The outermost blue dash-dotted circle shows the location of the P wave at the warning time, suggesting that most residents of the strongly shaken area would have been alerted by the P-wave itself before they received a warning from the EEW system. 2 years ago A small earthquake struck near Northridge Wednesday morning. The origin of the Northridge earthquake was near the intersection of … Strong ground motion was felt as far away as Las Vegas, Nevada, about 220 miles (350 km) from the epicenter. At a magnitude of 6.7, the 1994 Northridge earthquake wasn’t unusual in terms of its size. This was the first earthquake to strike directly under an urban area of the United States since the 1933 Long Beach earthquake . The 1994 Northridge earthquake was a ṃ of 6.7 (ṃ), blind thrust earthquake that occurred on January 17, 1994, at 4:30:55 a.m. PST in the San Fernando Valley region of the County of Los Angeles.Its epicenter was in Reseda, a neighborhood in the north-central Valley., a neighborhood in the north-central Valley. Archive Video: NBC4 went on the air after the first shaking from the Jan. 17, 1994 Northridge earthquake. It displays all earthquakes in the magnitude-6.0 to 6.9 range since 1970. The 1994 M6.7 Northridge, CA Shakemap showing MMI (Modified Mercalli Intensity) levels of shaking, with the earthquake epicenter shown as a red star, and the fault shown as a rectangle. Isoseismal map for the Northridge earthquake. Community Internet Intensity Map for the January 17, 1994, magnitude 6.7 Northridge, California, earthquake as of early April, 2001. Northridge Earthquake After the shaking earth had already demolished many parts of Southern California, a Los Angeles Police officer was unaware of disaster to come while riding his motorcycle to work from his home in Lancaster, north of the quake's epicenter. Satellite map of 1994 Northridge earthquake The 1994 Northridge earthquake occurred on January 17, at 4:30:55 a.m. PST and was centered in Reseda, a neighborhood in the north-central San Fernando Valley region of Los Angeles, California. The origin was near the intersection of Reseda Boulevard and Arminta Street in the northwest San Fernando Valley on a previously undocumented fault. File photo: On Jan. 17, 1994, a 6.7 earthquake rattled Southern California from the epicenter in Northridge. The seaside community is about 15 miles away from the Northridge earthquake epicenters, but soft soil, Southern California's fault system and Santa Monica's older building stock likely all contributed to significant damage. That includes the 6.7 Northridge quake in 1994 (which was 2.8 times stronger than Thursday’s earthquake) and the 7.1 Hector Mine quake in the Mojave Desert in 1999 (11 times stronger). The 1994 Northridge, California, earthquake occurred on a previously unrecognized and mapped blind thrust fault in the Los Angeles basin. The January 17, 1994, earthquake of magnitude M 5 =6.8 that struck the Los Angeles area was centered in Northridge. The innermost dotted circle doesn’t include the communication or reaction time latency (area labeled BZ); the next dash-dotted circle includes the 2-second communication latency (area labeled CZ), and the next dashed circle also includes the 5-second reaction time (labeled RZ). The media covered Northridge, which is a much more upscaled area than Reseda. How would the intensity of that shaking be felt across the Los Angeles of 2019? Most residents in the area of the strongest shaking (red area) did not receive any warning. Star shows epicenter, and colored areas on the map indicate the intensity for that ZIP-code area, as described in the key. Northridge earthquake of 1994, earthquake that struck the densely populated San Fernando Valley in southern California, U.S., on Jan. 17, 1994. Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. The 6.7 magnitude earthquake struck San Fernando Valley on Jan. 17, 1994, at 4:31 a.m. where 57 died and thousands were injured in Los Angeles area. NORTHRIDGE, CALIFORNIA EARTHQUAKE OF JANUARY 17,1994 122 120 36 34 32 Felt at Intensity VI Felt Not Felt 32 120 Figure 1. The 1994 Northridge earthquake greatly affected the CSUN campus, damaging much of its infrastructure, and causing multiple fires and explosions throughout the campus. In the case of the Northridge quake, its location in the vicinity of a built-up metropolis with some vulnerable structures -- including residential buildings and freeway overpasses -- made it a natural disaster of historic proportions. What's Changed Since the 1994 Northridge Earthquake On Jan. 17, 1994, a magnitude-6.7 earthquake revealed some of the safety issues that Southern California needed to … 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. The 1994 Northridge earthquake was a moment magnitude 6.7 (Mw), blind thrust earthquake that occurred on January 17, 1994, at 4:30:55 a.m. PST in the San Fernando Valley region of the County of Los Angeles. 34 12′47″N, 118 32′13″W The calculated epicenter of the earthquake Video broadcast Jan. 17, 1994 on NBC4. So the number 6.7 only tells us part of story of Monday, Jan. 17, 1994. The temblor was a magnitude 2.8, and its epicenter … The map below illustrates the potential impact if the Northridge earthquake occurred today. On the morning of Jan. 17, 1994, a magnitude-6.7 earthquake rattled Los Angeles. Archive Video: About a quarter-mile span of the 14 Freeway overpass collapsed onto the 5 Freeway north of Los Angeles due to the Jan. 17, 1994 Northridge Earthquake. This video from the morning of the quake shows what happened in the station's Burbank newsroom. Roman numerals give average Modified On January 17, 1994, at 4:31 a.m. PST, a magnitude 6​.7 earthquake centered in Northridge struck the southern California area. This map is compared in the figure on the right with a similar map from the Northridge earthquake. It will go down in history as the Northridge earthquake. Geologists and geophysicists have come to … The small square represents the 10×10 mile portion of the dipping fault that ruptured beneath the San Fernando Valley- deepest at the south, and closer to the surface at the north. Yesterday we remembered all the fatalities caused by the deadly Northridge earthquake. The fault only took seven seconds to rupture, but in a very short period of time, the strength of the shaking became the highest ever recorded in an urban area in North America, exceeding the force of gravity. Since 1900, an average of 120 earthquakes per year worldwide are in the magnitude-6.0 to 6.9 range. At $20 billion in damage and $49 billion in economic loss, it was the costliest natural disaster ever at the time in the United States, but the damage could have been worse had the rupture spread south toward the more densely populated areas in and around downtown Los Angeles. The media covered Northridge, which is a much more upscaled area than Reseda. Share on facebook Share Share on … Study Suggests Ridgecrest Quakes Changed the Odds of a Big San Andreas Earthquake, Earthquakes: What to Do Before, During and After the Shaking, Copyright © 2021 NBCUniversal Media, LLC. USGS Response to an Urban Earthquake - Northridge 1994 (Summary) Sixty people were killed, more than 7,000 injured, 20,000 homeless and more than 40,000 buildings damaged in Los Angeles, Ventura, Orange and San Bernardino Counties as a result of the Northridge earthquake of January 17, 1994. The 6.7 magnitude earthquake damaged several buildings as well as destroying all communications, such as telephone lines and causing computer systems to shut down. A similar map in 1994 took more than a month to create! The list includes the magnitude-6.9 earthquake in Kobe, Japan, which caused devastation on a staggering scale -- 5,100 fatalities, 27,000 injures and 100,000 building destroyed. At a depth of about 10 miles, the quake caused strong ground motion across a widespread part of Southern California. Th ... e M6.7 event was very damaging in parts of Los Angeles and had an epicenter under Reseda in the San Fernando Valley. The third major earthquake to occur in the state in 23 years (after the 1971 In 1993, the year before the Northridge quake, shocks in that range numbered 141 worldwide. Epicenter of the 1994 Northridge Earthquake The calculated epicenter of the earthquake, according to National Geophysical Data Center (see Wikipedia article). At the time, Los Angeles County's population was an estimated 9 million people. It caused heavy damage to highway bridges, lifeline facilities and residential and commercial buildings as For a visualization of just how many earthquakes rival the 1994 Northridge quake in magnitude, click here to view a USGS map. Credit: Caltech Shows maps of the seismic station distribution in 1994 at the time of the Northridge earthquake… Other information indicates the epicenter and date/time of the earthquake. But the latest epicenter… There were no commercial breaks. Residents to the south, including downtown LA and densely popuated areas around it, reported less intense "strong" and "very strong" shaking, denoted by yellow and orange squares. The quake had a duration of approximately 10–20 seconds, and its peak ground acceleration of 1.82 g0 (17.8 m/s ) was the highest ever instrumentally recorded in an urban area in North America. Reports of damage and casualties developed throughout the first day. The map below is a ShakeMap depicting how the Northridge earthquake shook southern California. Today, it's around 10.1 million with nearly 4 million in the city of Los Angeles alone. 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