Etna volcano (Italy): surprise paroxysm - lava fountain illuminates morning sky
Wed, 19 May 2021, 13:3013:30 PM | BY: T
The eruption of Etna seen early this morning (image: Boris Behncke / facebook)
Almost without warning or significant preceding activity, a paroxysm - a short-lived, but intense lava fountaining eruption - took place at the New SE crater during the early hours today.
Current tremor signal showing the peak of this morning's paroxysm (image: INGV Catania)
Shortly after midnight, volcanic tremor amplitude rose sharply to very high levels and a lava flow started to descend from the cone towards the SW into the upper Valle del Bove, as the magma column inside its conduit was being pushed up by a batch of gas-rich fresh magma.
Shortly after, strombolian activity began from the cone's summit crater as well, and quickly merged into moderate lava fountains. Shortly before the eruption, volcanologists could record a rapid inflation by about 1 microradiant of the volcanic edifice. By about 6 am in the morning, the eruption had ceased.
Wed, 19 May 2021, 02:15
Etna Volcano Volcanic Ash Advisory: ERUPTION AT 20210519/0121Z LAVA FOUNTAIN WITH ASH EMISSION to 18000 ft (5500 m)