Updates on volcanic activity (Smithsonian)
The Smithsonian/USGS Weekly Volcanic Activity Report provides information about global volcanism on a weekly basis. Latest Etna report has been published on 16 Feb 2022 07:22.
INGV reported that a notable eruption at Etna?s Southeast Crater (SEC) occurred during 9-10 February and changed the morphology of the cone. The eruption began with incandescence from explosive activity within SEC that was visible in webcam images at night during 9-10 February. Sporadic ash emissions rose above the crater. Lava began to effuse at 1520 on 10 February and flows descended WSW. Strombolian activity varied in intensity and frequency, though at 1700 there was a clear intensification. Lava flows continued to be fed and had descended S and SE to 2,900 m elevation. Strombolian activity transitioned to lava fountaining at around 2140, with fountains rising 1-1.5 km high, and ash plumes rising to 12 km (39,400 ft) a.s.l. and drifting W. Two pyroclastic flows, visible at 2140 and 2219, traveled a few hundred meters SE towards the Valle del Bove. At 2226 a larger pyroclastic flow expanded 1.6 km S and SE and covered the northernmost 2002-2003 craters, reaching 2,750 m elevation, and damaging a hut along the way. Lava fountaining ceased at 2300. The ash plume slowly dispersed W over the next few hours and the lava flow continued to be fed, reaching 2,850 m elevation. A new deep scarp opening to the SSW was formed during the eruption, overprinting the smaller breach that was on the SW crater rim. The new scarp was about 500 m long and had variable widths of 100-190 m. Weak and sporadic explosive activity continued from the lower part of the scarp. Tephra fell in areas to the NW (particularly at Maletto, 15 km NW) and as far as Sant?Agata di Militello (50 km NW) and Capo d'Orlando (50 km NNW), along the Tyrrhenian coast. At 1125 on 11 February a small vent opened at the SE base of the SEC, emitted ash, and produced a short, thick lava flow that traveled a few tens of meters SE.
Source: Sezione di Catania - Osservatorio Etneo (INGV)
See the detail here
