Greece Warns of possible earthquakes

Greece Warns of possible earthquakes in the coming days.

Athens 18 Nov (Prensa Latina) The Minister of Public Order of Greece, Vasilis Kikilias, today convened an emergency meeting after seismologists warned of the possibility of occurrence of strong earthquakes in the country in upcoming dates.
The warning came after this morning produced four earthquakes between 5.2 and 3.4 degrees on the Richter scale and could be felt in central Greece and the capital of the province of Attica.

Therefore, Kikilias summoned the relevant State agencies to create a strategy for dealing with a possible earthquake in the coming days and consider the level of preparedness for a warning by the agencies involved in this type of emergency .

Scientists are divided on the possible evolution of these phenomena in the near future, some of them providing dates and intensities of the next earthquake.

Speaking to the news portal Director of the Institute of Geodynamics of Greece, Akis Tselentis, considered that there might be earthquakes between 5.0 and 5.5 degrees of intensity in the coming days, but added that that level is not trigger the dangerous Atalanta tectonic fault, which runs along the Gulf of Evia.

For his part, Elias Tsiapas seismologist announced that there will be another earthquake on November 23, possibly between 5.1 and 5.6 degrees on the Richter scale, but also warned of a larger, up to 6.2 degrees, which could take place after 6 December.

In the same line, said Professor Kostas Papazajos, who said the tremors this morning were in the main of a series that you can not exclude continuing in the coming days.

lb / ACM

Sinabung, Vesuvius, Bardarbunga: the risks

Why in Europe and all over the word, we have to prepare us to face a volcanic crisis?

Activity has picked up considerably at the volcano during the past days. Several pyroclastic flows (dangerous hot avalanches of fragmented lava and hot gasses) traveled down the SE (and some on the NE) flanks of the volcano, threatening again the closest inhabited areas to the S of Sinabung.

Sinabung eruption:

But the greatest risk for Europe comes form Vesuvius.

Vesuvius is one of the most dangerous volcanoes in the world — but scientists and the civil authorities can’t agree on how to prepare for a future eruption. “There would be no modern precedent for an evacuation of this magnitude,” says Giuseppe Mastrolorenzo at the Vesuvius Volcano Observatory in Naples. “This is why Vesuvius is the most dangerous volcano in the world.”
Vesuvius risks:

Volcano‬ Bardarbunga‬: possible evolution scenarios, webcam live streaming.

Drone video:

Professor Magnús Tumi Guðmundsson, professor of geophysics at the University of Iceland´s Institute of Earth Sciences and the foremost Icelandic expert on subglacial eruptions outlines the three following scenarios:

1) The eruption at Holuhraun stops and with it the depletion of the magma reservoir of the Bardarbunga system also stops.
2) The eruption at Holuhraun continues as does the depletion with an accompanying subsidence at the Bardarbunga caldera. (As this goes on, the risk of possibility #3 increases, our note).
3) The deflation reaches a critical point where part of the roof of the Bardarbunga caldera collapses which allows water, liquid or in the form of ice, to interact directly with the magmatic main body. (This will lead to a series of very violent explosions which will only stop when either the body of water/ice or the body of magma are exhausted, our note).

Volcano Bardarbunga: streaming.

Vulcano Bardarbunga, l’esperto: “il magma è risalito dal mantello”. Le immagini dallo spazio

Poco dopo la mezzanotte di venerdì 29/08/2014 è iniziata una piccola eruzione con emissione di lava e fumo da fratture in prossimità del vulcano.

Il traffico aereo al momento non ha subito ritardi, anche se l’allarme è tornato al livello rosso. Nei prossimi giorni ci si può aspettare un peggioramento a causa dei venti che potrebbero spingere la nube di ceneri verso sud, sull’oceano atlantico.

A livello locale il maggior rischio è costituito dai ghiacci che ricoprono il vulcano che potrebbero sciogliersi a causa dell’eruzione provocando allagamenti.

Nel caso si verificasse lo scenario N° 3. Il problema è serio anche per quanto riguarda il clima, se la quantità di ceneri immesse in atmosfera fosse davvero abbondante, potrebbe influenzare il clima di tutta l’Europa provocando una piccola era glaciale nei prossimi anni. I danni economici, soprattutto per l’agricoltura sarebbero enormi.