At 4:30 a.m. on January 17, 1994, the M6.7 Northridge struck in the San Fernando Valley, roughly 20 miles northwest of downtown Los Angeles. Although the duration was only 10 to 20 seconds, the ground motions included a reading of 1.82g, the highest ever recorded in an urban area in North America, and the MMI was IX (violent). The earthquake resulted in around 60 fatalities, and damage estimates were as high as $50 billion.