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El Hierro Earthquake Update : 24th February

Fri 24th Feb 2012

Scientists from the National Geological Institute (IGN) who have been observing seismic activity on the Island of El Hierro as part of the earthquake swarm, which began on the 17th of July last year, have recorded a total of 21 earthquakes over the course of the last 7 days - once more showing how the continued swarm shows no sign of ceasing, despite a temporary fall in activity over during December..

As in previous weeks and months, the majority of the activity took place in the area between Frontera and Pinar toward the North-West of the Island, with magnitudes ranging between 1.5 to 2.6 on the richter scale, and at depths ranging from between 9 to 16kms, with the majority of activity occuring at depths of around 12kms.

Meanwhile, on the opposite side of the Island in the bay of las Calmas, off the coast of las Restinga, the underwater volcanic erruption has seen a decrease in it's activity, although a faint 'Jacuzzi' is still visible on the surface of the water. The production of pyroclasts on the surface of the water has also stopped for the time being.

This Youtube video uploaded a few weeks ago shows a series of satellite photographs of the Island - one taken every day since the underwater volcanic eruption began in October last year >>>

The Ramon Margalef Oceanic Reaserch Vessel is still in the area involve in activities such as mapping the area of the seabed around the eruption and taking samples, whilst a second Vesse- the Atlantic Explorer - has deployed an ROV (Remote Operated Vehicle) to take underwater measurements and record footage of the area.

Read previous news stories about the El Hierro Volcano by clicking the link HERE .

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