Last updated on October 20th, 2011
Many months ago, the island of El Hierro began shaking with the onset of thousands of earthquakes, and has not stopped since.
My interest in the geophysical Earth inspired me to write a ‘what-if’, or ‘worst case scenario’ of the island region causing a massive tsunami sweeping across the Atlantic, given the region’s ancient history, “300 Foot Tsunami and East Coast Destruction“. Although the prospect of such a tsunami may be a bit overly dramatic, nonetheless it appears that something is happening under the sea in the El Hierro region.
A look at the GPS stations there, reveals quite evidently that most of them (6 of 10) in the area are literally sinking, and have been doing so since about July of this year. My own observations of other volcanic regions have shown that there is often ‘inflation’ or rising of the land mass prior to volcanic eruption. In this case though, there is rather dramatic deflation to the northeast of El Hierro, particularly ‘Canarias’. The region is sinking…
…Ok, OK, it has ‘only’ been about 40 mm and the title of this article is a bit dramatic, but it’s an interesting observation nonetheless to see so many stations showing that much deflation.
In stark contrast though at El Hierro, today, from VolcanoLive.com (John Seach), “An undersea eruption began off the coast of El Hierro Island, Canary Islands on 10th October 2011. Initial reports have placed the eruption site a few kilometres off the south coast of the island at a depth of about 450 m. The eruption has only been confirmed from seismic activity.”
The GPS at El Hierro is apparently showing inflation.
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