Saturday, November 26, 2011

Low seismic activity on Friday and early Saturday

Low seismic activity on Friday and early Saturday

DIARIO DE AVISIOS | Valvede

The National Geographic Institute (IGN) has registered on the island of El Hierro on Friday a total of 9 earthquakes of between 1.5 and 3.1 magnitude on the Richter scale. In total, since the day July 17, 2011 11 842 events have been found.

The largest of the earthquakes recorded at 02.35 hours, had a magnitude of 3.1 degrees and felt by the population with a maximum intensity of III in the town of Frontera. This event was located at sea 20 kilometers deep.

The rest of recorded earthquakes have been located in the Gulf, aligned in the NNW / SSE at sea and a depth between 15 and 24 kilometers deep. The last of these, 2.0 degrees, occurred at 21.19 hours about 18 km depth and epicenter in the sea.

No earthquakes early Saturday

The island of El Hierro has dawned without recording a single earthquake, after four months of intense activity.

However, until 10 hours have been recorded four most intense movement of 2.7 degrees on the Richter scale, with a hypocenter depth of 20 km, all in the Northwest Frontier.

The stain remains widespread

The stain caused by the eruption is ongoing underwater off the coast of La Restinga has remained widespread in surface appreciating certain sporadic changes in hue. The sending center has presented a brown color associated with the emission of fine material.

For its part, the results of processing the data obtained with the GPS stations do not reflect any clear trend in the horizontal components other than the regional. Vertically majority view stations and only a collapse of El Golfo seem to point to a stability, mainly in the east.

The amplitude of the tremor is stable

On the tremor signal, its amplitude is maintained at levels similar to those of the previous day. In the analysis of the data is not evidence of any second source of tremor.

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