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Volcanic activity worldwide 25 Dec 2018: Etna volcano, Fuego, Popocatépetl, Krakatoa, Sakurajima, N...

mardi déc. 25, 2018 21:00 |

Map of today's active volcanoes
Map of today's active volcanoes
Earthquakes under Etna volcano during the past 7 days
Earthquakes under Etna volcano during the past 7 days
Satellite image of Etna volcano on 25 Dec 2018
Satellite image of Etna volcano on 25 Dec 2018
Lava flows from Etna this evening (image: Emanuela Carone / VolcanoDiscovery Italia)
Satellite image of Sakurajima volcano on 25 Dec 2018
Satellite image of Sakurajima volcano on 25 Dec 2018
Exaggerated  cross section and bathymetry of the Krakatau caldera, showing the flank collapse modeled in 2012 (image: Giachetti et al, 2012)
Exaggerated cross section and bathymetry of the Krakatau caldera, showing the flank collapse modeled in 2012 (image: Giachetti et al, 2012)
Etna (Sicily, Italy): Bad weather has mostly prevented clear sights of the new flank eruption today, but it seems that while it is still going on, lava emission from the new fissure vent high in the Valle del Bove that opened yesterday has decreased.
The area remains obscured in clouds, but thermal cameras show continuing activity from the Bocca Nuova crater.
Seismic activity remains elevated, showing that the eruption is certainly not over and still evolving: the recent earthquake swarm continues (albeit at decreased intensity) with approx. 20 earthquakes with magnitudes between 2 and 3.4 having been detected during the past 24 hours. Most quakes were at shallow depth in the SE sector of the volcano.
...25 Dec:
Volcanic Ash Advisory Center Toulouse (VAAC) issued the following report: ASH EMISSION HAS DIMINISHED OBS VA DTG:25/1500Z
...25 Dec:
Volcanic Ash Advisory Center Toulouse (VAAC) issued the following report: STARDTED AT 20181224/1115Z OBS VA DTG:25/0300Z
...24 Dec:
Our Etna specialist Emanuela climbed Etna earlier today, witnessing the onset of the new flank eruption in the upper Valle del Bove.
You can find the images in this gallery.

Ebeko (Paramushir Island): (25 Dec) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20181225/0312Z FL140 EXTD NE REPORTED OBS VA DTG:25/0310Z

Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20181225/1121Z OVER FL090 EXTD E OBS VA DTG:25/1110Z

Krakatoa (Sunda Strait, Indonesia): Sometimes, science has already answers for tragic events, but their voice is not heard or underestimated at the time. The Indonesia tsunami disaster two days ago is such an example: What happened on 22 Dec 2018 had actually already been described and warned about for years in amazing detail:
In January 2012, scientist around volcanologist Dr Thomas Giachetti from the University of Oregon published results of numerical modelling simulating a flank collapse and associated tsunami at Anak Krakatau island and warned about the devastating effects it would have on nearby coasts:
... [read more]

Popocatépetl (Central Mexico): (25 Dec) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL VA EMS

Fuego (Guatemala): (25 Dec) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: CONT INTMT VA EMS.

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: INTERMITTENT EMISSIONS OF VA
...25 Dec:
Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: INTERMITTENT EMISSIONS

Nevados de Chillán (Central Chile): (25 Dec) Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: PUFF OF VA
Actualités précédentes
Map of today's active volcanoes
lundi, déc. 24, 2018
Etna (Sicily, Italy): The following video shows the beginning of Etna volcano's new flank eruption, starting around noon on 24 Dec 2018: a series of quakes accompanies the progressive opening of several fractures, accompanied by strong ash emission, on and below the SE crater. ... [details]

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