On October 17, 1989, at 5:04:15 p.m. (PDT), a magnitude 6.9 earthquake severely shook the San Francisco and Monterey Bay regions. The average strike-slip displacement was 1.2 meters while the average reverse-slip displacement was 1.6 meters. It has been 25 years since the 7.0 Loma Prieta earthquake rocked the San Francisco Bay Area at 5:04PM on October 17, 1989 causing widespread damage to … It was the largest quake to shake the area since the massive San Francisco earthquake of 1906. The Moment It Hit. The other one is the 1906 earthquake. The same type of soils had liquefied during San Francisco's deadly 1906 earthquake… Discover interesting facts about the 1989 Loma Prieta San Francisco Earthquake, also known as the World Series Quake. An earthquake is caused by the breaking and … Smaller earthquakes often follow the main shock. Facts On The Loma Prieta Earthquake A major earthquake jolted the San Francisco Bay Area on the afternoon of October 17, 1989. Just after 5 p.m. on Oct. 17, 1989, I raced out of the small Spanish-language TV station where I worked as a young technician. The Loma Prieta earthquake ruptured the southernmost 40 km of the 1906 break, in comparable amounts of right-lateral strike slip and reverse slip motion. The San Francisco–Oakland earthquake of 1989, which was also called the Loma Prieta earthquake, was a major earthquake that struck the San Francisco Bay Area of California on October 17, 1989. The Loma Prieta earthquake was a horrific reminder of the hazards of building on soft, wet muds and clay. It measured a 6.9 on the Richter Scale. I remember the parking lot rolling in waves and the power lines dancing in the air. Loma Prieta Facts; Facts About Earthquake Earthquake Facts Earthquakes strike suddenly, violently, and without warning at any time of the year and at any time of the day or night. Loma Prieta is one of two famous quakes in SF. On October 17, 1989, soon after Loma Prieta Earthquake hit the Bay Area, the Department announced a recall of all off-duty personnel. He cancelled his trip and returned to the City.) The 1989 Loma Prieta earthquake occurred on California's Central Coast on October 17 at 5:04 p.m. local time. The Loma Prieta quake hit the bay area on the evening of October 17, 1989 at 5:04pm. 1 of 6 A landslide caused by the Loma Prieta earthquake would block southbound lanes on Highway 17 across the Santa Cruz Mountains, October 18, 1989. Just over the mountains and an hour away, the San Francisco Bay Area buckled under the devastating Loma Prieta earthquake. The epicenter was located near Loma Prieta peak in the Santa Cruz Mountains, approximately 14 km (9 mi) northeast of Santa … The earthquake drill, which reminded people to drop, cover and hold, took place at 10:17 a.m., coinciding with the Loma Prieta anniversary. 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