Kategorie: Climate Change

Lava fountain from Etna’s New SE crater this morning (image: INGV webcam on Montagnola)

A third, brief phase of lava fountaining occurred this morning between around 9.30-10 am this morning. A dense ash plume drifted eastwards.

This marks the 3rd small paroxysm in a row in less than 24 hours.

Current tremor signal showing the peaks of this morning’s paroxysms (image: INGV Catania)

Eruption column from today’s explosion at Great Sitkin volcano (image: AVO)

A new short-lived (1-2 minutes) explosive eruption started at the volcano at 21:04 local time (05:04 UTC) and the activity is still continuing at the time of this update as confirmed by geophysical data.

Mariner observations suggest an ash plume height of about 15,000 ft (4,600 m) as well as confirmed by Volcanic Ash Advisory Center (VAAC) Anchorage. The plume continues to dissipate towards the east.

The eruption was preceded by an elevated volcanic-seismic unrest and over the past day.

In addition, an elevated surface temperatures and sulfur dioxide (SO2) emissions were detected during the past week.

The Alaska Volcano Observatory (AVO) raised the Aviation Color Code to ORANGE and the Volcano Alert Level to WATCH.

Source: Alaska Volcano Observatory volcano activity update 7 October 2021

Glowing rockfalls from the active lava dome yesterday (image: PVMBG)

The activity of the volcano remains essentially unchanged characterized by the actively growing lava dome.
Collapsing parts of the dome triggered several small rockfall avalanches that traveled over the southwestern slopes about 1.5 km distance from the summit and lifted ash plumes separating from the avalanches (so-called phoenix clouds).

Pyroclastic flows – turbulent and hot avalanches of hot lava rocks, ash and volcanic gasses mixed together – are being released from the growing dome.

During yesterday, the volcano observatory counted about 180 earthquakes

The volcano’s official alert level remains at 3 (on a scale of 1-4), and the public is being warned to stay at least 5 km away from the summit.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 26 May 2021

View of Stromboli’s Sciara this morning.

It seems the lava flow from the northeastern vent that had been the result of overflow from the crater after its partial collapse last week is no longer active this morning.