April 1, 2014 |
The fault that triggered a magnitude 8.2 quake off the northern Chilean coast was overdue for a significant earthquake, and an even more powerful temblor could be in store, said Rick Allmendinger, a Cornell University professor of earth and atmospheric sciences. “This segment in Chile had not broken since 1877,” said Allmendinger, a geology expert who has extensively studied the northern Chilean fault zone. “It had been quiet for an unusually long period of time.” But the 8.2 earthquake, which seismologists said struck about 950 miles north of Chile's capital, Santiago, wasn't powerful enough to release all the friction that had been built up in this zone, where the Nazca plate is sliding underneath the South America plate, Allmendinger said.
March 20, 2010 |
When structural engineer Anuj Bansal designs systems for hospitals, university libraries and apartment complexes, seismic safety is a key consideration. But the best way to find out what it takes for a building to withstand a massive earthquake is to analyze the aftermath of an actual event. That's why Bansal, who heads the Los Angeles office of Degenkolb Engineers, traveled to Chile with three colleagues to survey the damage resulting from last month's 8.8 quake that killed 497 people, caused $30 billion in damage and shifted the city of Concepcion 10 feet to the west.
June 24, 2001 |
A powerful earthquake shook southern Peru on Saturday, killing at least 47 people and damaging dozens of homes, churches and buildings, officials said. The quake, with a magnitude measured at up to 7.9, hit Peru at 3:30 p.m. and was felt as far as Bolivia. Twenty-one people were killed in Arequipa, Peru's second-largest city, located about 500 miles southeast of Lima, the capital, said Santiago Montenegro of Peru's Civil Defense Institute.
May 13, 2000 |
A strong earthquake struck northern Chile and Argentina, setting off a landslide at a copper mine that killed a miner. The temblor struck at 2:45 p.m. and had a preliminary magnitude of 6.8, the Seismological Institute of the University of Chile said. The U.S. Geological Survey in Golden, Colo., said the quake's magnitude was 7.0.
October 15, 1997 |
A powerful earthquake rocked much of the nation, crushing homes, sparking several landslides and killing seven people, authorities reported. The tremor measured 6.8 and was centered near Illapel, about 130 miles north of Santiago, the capital, according to the National Earthquake Information Center in Golden, Colo. But it was felt along a 750-mile north-south stretch of Chile, including the capital.
July 31, 1995 |
Thousands of residents poured into the streets in panic after a powerful earthquake rocked a 1,000-mile stretch of northern Chile early Sunday. At least three people were killed, and 18 were injured. But considering the strength of the 7.8-magnitude quake--centered in the Pacific Ocean 12 miles west of Antofagasta--the casualties were few and damage was minor, police said.