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article imageIntense seismic activity affecting southern Chile today

By Igor I. Solar     Jul 14, 2010 in World
Santiago - Several earthquakes of medium to high intensity have affected southern Chile during the last few hours. The most severe quake, 6.5 on the Richter scale, shook the Bio Bio and Araucanía Regions at 4.32 a.m.
The series of earthquakes started this morning at 4:21 a.m. local time, and it was followed by a succession of tremors at 4:32, 8:44, 10:46 and 11:05 a.m. The earthquakes have affected an extensive area of central-south Chile and according to the USGS the magnitude has ranged from 4.9 to 6.5 on the Richter scale.
Although some of the strong earthquakes caused panic and concern in the population that inhabits coastal regions in the affected area because of the potential occurrence of tsunamis, the Chilean National Emergency Office (ONEMI), on the basis of reports issued by SHOA (The Navy’s Oceanographic and Hydrographic Service), reported that the 6.5 Richter quake that occurred this morning did not have the characteristics to generate a tsunami on the coast of the country.
In the small coastal town of Tirúa, located in the Araucanía Region, not far from the location of the epicenter of the February 27 quake, the population left the town following the strong, 6.5 Richter earthquake and took refuge in the higher areas, away from the beach and river.
The beautiful town of Tirúa  in the Araucanía Region of Chile  nearest to the epicenter of all 5 e...
The beautiful town of Tirúa, in the Araucanía Region of Chile, nearest to the epicenter of all 5 earthquakes that took place in Chile in 2010
César (from Tirúa)
Seismologist Sergio Barrientos explained to Spanish language media that the recent activity corresponds to “late replicas of the earthquake that hit Chile on February 27,". This is the same area "that has been more subject to significant stress changes and where one may expect rearrangement of the tectonic plates."
On the subject of how much longer could last the period of aftershocks, the seismologist said that “it may be in the order of three to four months", although "it’s not surprising that sporadic earthquakes may continue until probably a year later."
More about Chile, Earthquakes, Bio bio region
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