![]() ![]() Although given the name " Northridge", where the quake was believed to have been centered and substantial damage occurred, the actual epicenter was pinpointed in the neighboring community of Reseda within several days. The earthquake struck in the San Fernando Valley about 20 miles (32 km) northwest of downtown Los Angeles. In addition, property damage was estimated to be $13–50 billion (equivalent to $24–93 billion in 2021), making it among the costliest natural disasters in U.S. The death toll was 57, with more than 9,000 injured. Two 6.0 M w aftershocks followed, the first about one minute after the initial event and the second approximately 11 hours later, the strongest of several thousand aftershocks in all. The peak ground velocity at the Rinaldi Receiving Station was 183 cm/s (4.1 mph 6.6 km/h), the fastest ever recorded. Shaking was felt as far away as San Diego, Turlock, Las Vegas, Richfield, Phoenix, and Ensenada. The quake had a duration of approximately 10–20 seconds, and its peak ground acceleration of 1.82 g was the highest ever instrumentally recorded in an urban area in North America. PST in the San Fernando Valley region of the City of Los Angeles. The 1994 Northridge earthquake was a moment magnitude 6.7 ( M w), blind thrust earthquake that occurred on January 17, 1994, at 4:30:55 a.m. Magnitude of the earthquake and aftershocks ![]() Jones says overall, it’s important to remember that “the last 25 years has not been normal. Luckily, the earthquake on Thursday was over 100 miles from the fault. Perhaps the most worrisome fault in the area is the San Andreas Fault, which, on its southern side, is capable of producing a magnitude 8.2 quake. With over 500 active faults in California, the state is sure to see many more quakes in the future. Overall, she says, “we’re much more prepared than we were and not nearly as prepared as we could be.”ĥ) What can people expect in terms of future earthquakes in the region? She says it’s also important to make sure all buildings are up to code, so that they will keep residents safe during any future bad quakes. Jones says the state could do better when it comes to protecting its water systems, which are particularly vulnerable to earthquakes. “It might be pretty significant.” There were no injuries immediately reported.Ĥ) How prepared was California for this type of natural disaster? “For the people that are nearby, we don’t yet really know what the damage level is,” says Jones. But there have been reports of structure fires and rock slides, and there could be much more damage that simply hasn’t yet been discovered or reported. It did not affect any part of the Los Angeles metropolitan area. The earthquake took place in a very isolated area, where few people live. In that time period, an earthquake even larger than the initial quake could also take place.ģ) What kind of damage and injuries have been reported? ![]() Officials expect that a magnitude 5 aftershock will likely take place in the next day or so. In the three hours after the earthquake, there have already been 180 small aftershocks, including 10 with a magnitude of 4, according to Jones. ![]() 2) What should you expect in terms of aftershocks? ![]()
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