how much damage did the alaska earthquake cause 2018
2018 Gulf of Alaska earthquake According to the United States Geological Survey, the earthquake occurred 175 miles (282 km) southeast of Kodiak, Alaska at 12:31 AM local time (AKST).[2] Witnesses to the earthquake itself reported that it was very long in duration, feeling like a "slow roller," but it was not a violent earthquake despite its magnitude. This was corroborated by witnesses in Anchorage.[8][6] There was no immediate damage reported.[6] The earthquake woke people in Anchorage, 350 miles (560 km) from the epicenter, and was felt as far as Fairbanks to the northeast and British Columbia to the southeast.[4][5] The earthquake's S-waves arrived in Anchorage within one minute, and reached Fairbanks within three minutes.[9]
1994 Northridge earthquake The 1994 Northridge earthquake occurred on January 17, at 4:30:55 a.m. PST and had its epicenter in Reseda, a neighborhood in the north-central San Fernando Valley region of Los Angeles, California. It had a duration of approximately 10–20 seconds. The blind thrust earthquake had a moment magnitude (Mw) of 6.7, which produced ground acceleration that was the highest ever instrumentally recorded in an urban area in North America,[5] measuring 1.8g (16.7 m/s2)[6] with strong ground motion felt as far away as Las Vegas, Nevada, about 220 miles (360 km) from the epicenter. The peak ground velocity at the Rinaldi Receiving Station was 183 cm/s[7] (4.09 mph or 6.59 km/h), the fastest peak ground velocity ever recorded. In addition, two 6.0 Mw aftershocks occurred, the first about one minute after the initial event and the second approximately 11 hours later, the strongest of several thousand aftershocks in all.[8] The death toll was 57, with more than 8,700 injured. In addition, property damage was estimated to be between $13 and $50 billion,[9] making it one of the costliest natural disasters in U.S. history.