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Cumbre Vieja volcano post eruption phase! Time to say goodbye for volcano-thank you for all support :)
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MtnPatriot |
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Haven't kept up with this tread over the past few days. Just looked at the EQ map for La Palma and noticed there were a couple EQ on the OTHER SIDE of the island's ridge. This cannot be good that they are spreading to the other side....???? [ link to www.ign.es] The "slide block" proposed by Ward & Day actually extends under the ridge snd out the other side by a kilometer or two. (See the OP post #1 for the link to the paper..the scenatic is on page 2). EQ's up and down the ridge are deep at the moment, 8-12km. Whilst concerning I am watching to see if that depth rises closer to the surface. I would guess anything less than 5km and over 3.0Mag is VERY concerning. Anyone else disagree? Agree. And I would say number matters too. The ground might have time to resettle between given the constant vibrations. I have attached a 3d map of the earthquakes. There are 3 groups that I see, the deepest ones, the middle ones, and the shallow ones. The middle ones seem to reveal two lobes to a magma chamber under the island; a west lobe and a southward eastward lobe. It looks to me that magma heat/pressure is now working on the southward lobe which could result in vents opening at the South end. [ link to lapalma.maps.arcgis.com (secure)]
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