The Head of Early Warning Onemi, Miguel Ortiz, denied that the strong tremor recorded early Thursday unrelated to the quake last Tuesday and the series of aftershocks occurred in recent days in the central region . "What we have now are earthquakes that have risen in magnitude, which have been perceived by the population and certainly there is greater concern. Nor is it a swarm," said the authority also dismissing any link with the earthquake of February 2010.
The epicenter "is out of the rupture zone of the 27-F. It is off the coast of Valparaiso, where the subduction zone between the Nazca Plate and South American is," he said, adding that "no involvement occurred to personnel or infrastructure. " Previously the director of Seismology, University of Chile, Sergio Barrientos, had stated that the earthquake of 01:37 hours Thursday "with which occurred a couple of days ago, both sensitive, are of different origin". "That was this morning, is a tremor which is about 60 km deep and that apparently we have to study a little more, because it would be an earthquake that would occur within the plate, then it has different characteristics to the replicas a few days ago, "he added.
Along these lines, in an interview with "CNN Chile," said that "last night's quake has not had any reply, so that shows that the genesis of tremor is different earthquake a couple of days ago, that was a lot of activity both propulsive as aftershocks and some sensitive".
"However, today in the morning until now, that several hours have passed, we have not detected movement in our instruments. Treatable This reveals different characteristics of earthquakes and do not necessarily have to belong to the same point process, but that we have to study it further with more data, "he said.
POSSIBILITIES OF EARTHQUAKE
Asked about the possibility of an earthquake of magnitude higher in the north is unleashed, Barrientos said "is a statistical issue and it is a matter of physical model of how we understand the tremors that occur here in our country" .
"Large earthquakes, and would like to say that not only the north is included among the possible places where earthquakes may occur, but almost all of Chile, so we should not emphasize only the north earthquakes can happen," he said.
In this regard, said that "what happens is that the Nazca plate, which is what is in the Pacific Ocean and is close to the South American plate where we are located, there is a convergence of three inches per year. So Each year, the plate was about and when earthquakes occur that approach becomes a deformation of the contact between the two plates."
0 comments:
Post a Comment