Etna, Sicilia : Strombolian activity inside the crater of Voragine .

Etna, Sicilia : Strombolian activity inside the crater of Voragine .

During the last days, the Strombolian activity inside the crater of Voragine, one of the four summit craters of Etna, continued. The intensity and frequency of explosions showed no significant changes compared to the information updating on November 5, 2015. Some explosions are accompanied by the formation of small puffs of ash that rarely exceed the crater rim to rapidly disperse into the atmosphere. Also continued a great degassing from the Northeast crater, accompanied by frequent rumblings in the ducts of the same crater , as well as at the New Southeast Crater (NCSE), where numerous fumaroles are present, both in the crateric depression and the southern and eastern flanks of the cone.

At 0:13 UTC (local time = -1) on November 8, 2015, took place on a single small explosion in the crater of NCSE, which generated a plume of gas (possibly with a small amount of volcanic ash) up to about 300 m, and a brief anomaly visible on the images of thermal cameras (see the left image, taken by the thermal camera on the Montagnola, EMOT, on the southern slope of Etna). The explosion was followed in the hours that followed, by reduction of degassing of the NCSE.

November 09, 2015. Etna, Sicilia :

Source : INGV / B Behncke.

Photo: Salvatore Lo Giudice

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