May 1960 Puerto Montt, Valdivia, Chile Images
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On May 22, 1960, a Mw 9.5 earthquake, the largest earthquake ever instrumentally recorded, occurred in southern Chile. The series of earthquakes that followed ravaged southern Chile and ruptured over a period of days a 1,000 km section of the fault, one of the longest ruptures ever reported. The number of fatalities associated with both the earthquake and tsunami has been estimated to be between 490 and 5,700. Reportedly there were 3,000 injured, and initially there were 717 missing in Chile. The Chilean government estimated 2,000,000 people were left homeless and 58,622 houses were completely destroyed. Damage (including tsunami damage) was more than $500 million U.S. dollars.
September 2015 Illapel, Chile Images
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On September 16th, 2015, an earthquake registering 8.4 on the Richter scale shook Chile between the Atacama and La Araucania regions. The National Emergency Office (ONEMI, per its Spanish acronym) issued a tsunami warning for the entire Chilean coastal area, evacuating over 600,000 people. ONEMI reports that approximately 681,484 people were affected as a result of the earthquake, and has declared the Coquimbo region as a disaster area.
April 1981 Westmorland, Calipatria, USA Images
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Magnitude 6.3. Damage $1-$3 million. Subsidence was reported on several rural roads in the area. Liquefaction caused scores of mudpots, and oozing soil in nearby fields. One country road west of Westmorland collapsed, producing a 2-foot drop-off. In rural areas, unreinforced, concrete-lined irrigation canals were broken.
March 1933 Long Beach, USA Images
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5 kilometers southwest of Newport Beach. Seriously affected area: 1,200 square kilometers. Damage: $40 million. Schools were among the buildings most severely damaged because they were not designed to resist shaking. In addition to the damage to the schools at Long Beach, the schools at Buena Park were badly damaged. There was also considerable damage to schools at Lomita, and two schools were damaged at Redondo Beach. Great loss of life would have occurred if the shock had taken place during school hours. Unlike the 1906 San Francisco earthquake, the loss due to fire in the 1933 earthquake was almost negligible.