Etna: 4,500 meters high ash cloud – Last Hour


(ANSA) – CATANIA, MAY 22 – Sudden acceleration
eruptive activity last night on Etna where it was
there was an increase in Strombolian activity in the Nuovo
South East Crater. The explosive phase produced a cloud of
volcanic ash that has reaches 4,500 meters in height and is
scattered south-west. The phenomenon, according to Ingv-Oe
of Catania, after three hours had a sharp decrease with
the emission of ash confined throughout the summit area of ​​the
volcano. It has not undergone changes in place of the business
Voragine crater explosive with periodic ash emission
which disperses rapidly near the summit area.

The amplitude of the volcanic tremor is decreasing and is now on
average values. The source of the tremor is in the area of ​​the New
Southeast crater at an average depth of 2.8 km above the
sea ​​level. As for the infrasonic activity no
there are substantial variations, but one is to be reported
displacement of the springs in the area of ​​the Northeast crater.


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