AN earthquake of magnitude 7.7 was recorded at 11,22 (15,22 in Italy), 45 km of Puerto Quellon in the south of Chile, at a depth of 15 kilometres. It is the geophysical Institute of the american Usgs. The chilean authorities have issued an alert and tsunami, according to which are the possible “dangerous waves” in a radius of one thousand kilometers from the epicenter of the earthquake. The ministry of the Interior, the chilean has lowered the alert to a level of surveillance, stating that there can be high waves from 30 centimeters up to a meter. The authorities have ordered the evacuation of the coastal area of Los Lagos, Dona Sebastian. As A precautionary measure, the ruling also concerns the regions of Biobio, la Araucania, Los Rios. It is not at the time any injured. The hypocenter (the exact point where it is verified the fracture in the earth’s crust) has been identified to a depth of 33 km. The Usgs by the news of another shake of 5.4 degrees on the Richter scale occurred on 21 minutes before in Chile, but much further north, 147 km from Iquique, 1,480 km north of the capital. The director of civil protection in chile (Onemi), Alejandro Verges, explained that the time of verification of a possible impact of a tidal wave on the coast of the affected area of the earthquake is one hour. The seismological center, the chilean indicates to the shock a boost of a magnitude of 7,6, and places the hypocenter at a depth of 20 kilometres, against the 40 set by the Usgs. An important difference, because the smaller the depth of the hypocenter the greater the destructive effects on the surface.
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