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Chile: fifth earthquake in three days

February 14, 2011 Comments off
CHILE-EARTHQUAKE

Shaky ground: A local resident hurries to abandon the waterfront after an earthquake in Constitucion, south from Santiago, on February 11, 2011. Picture: Diego Garcia Source: AFP

A MAGNITUDE 5.6 earthquake struck Chile – the third to hit within hours and the fifth tremor in three days.

The latest tremor hit 41 kilometres northwest of the central city of Concepcion at a depth of 17.7 kilometres. The quakes earlier in the day measured 6.0 and 5.8.

On Friday two quakes – measuring 6.3 and a 6.8 – rattled the region.

All the tremors have occurred in the same area heavily damaged by an 8.8 magnitude quake nearly a year ago.

That disaster resulted in more than 500 deaths and $30 billion in damage, and led to an inquiry over the lack of a timely tsunami warning.

Scientists warn of new Chilean quake

February 1, 2011 Comments off

Rescue workers search for victims and survivors after an apartment complex collapsed during an 8.8-magnitude earthquake in Concepcion on February 27, 2010. Scientists say there is a high risk of a new earthquake in an area of Chile's Pacific coast which was hit by a massive quake and tsunamis last year.

Nearly 500 people were killed when an 8.8-magnitude earthquake struck off the coast of central Chile triggering a local tsunami in February 2010.

According to the report published in the journal Nature Geoscience, the previous quake had only partly broken stresses, deep in the Earth’s crust in the Chilean city of Concepcion, that have been building up since an 1835 quake witnessed by British naturalist Charles Darwin.

Darwin documented the 1835 earthquake during a five-year voyage.

“We conclude that increased stress on the unbroken patch may in turn have increased the probability of another major to great earthquake there in the near future,” the report read.

Chile’s February quake was the most powerful since the one in 2004 which caused a devastating tsunami in the Indian Ocean.

“It’s impossible to predict exactly when a new quake might happen,” Stefano Lorito of Italy’s Istituto Nazionale di Geofisica e Vulcanologia told Reuters.

Scientists examined data from tsunamis, satellites and other sources to calculate the Read more…