Volcanos

Roundup of Global Volcanic Activity – New Activity for the Week 23 June – 29 June 2021

Rincon de la Vieja – Costa Rica : OVSICORI-UNA reported that at 0542 on 28 June an eruption at Rincón de la Vieja produced a steam-and-ash plume that rose 2 km above the crater rim and ejected material onto the flanks. Residents in Gavilan de Dos Ríos (7 km N and NNW) and Bromelias (6 km NNE) reported volcanic gas odors and ashfall. Lahars descended multiple drainages on the N flank.

Sarychev Peak – Matua Island (Russia) : SVERT reported that thermal anomalies over Sarychev Peak were identified in satellite images on 12, 23, 25, and 29 June. At 0020 on 30 June an ash plume was visible in satellite data rising 3 km (10,000 ft) a.s.l. and drifting 30 km WNW. The Alert Level was raised to Yellow (the second lowest level on a four-colour scale) on 30 June.

Suwanosejima – Ryukyu Islands (Japan) _ JMA reported that eruptive activity at Suwanosejima’s Ontake Crater increased during 21-23 June with multiple events. Eruptive events at 2254 on 21 June and 0004 on 23 June ejected large incandescent bombs 900 m NW and SE (respectively) from the crater; eruption plumes rose 1.2 km above the crater rim. The increased activity prompted JMA to raise the Alert Level to 3 at 0015 on 23 June and warn the public to stay at least 2 m away from the active crater. During an overflight on 23 June scientists noted incandescence on the crater floor and that there were several high-temperature deposits scattered in and around the crater. White plumes rose 200-300 m above the crater rim. Multiple eruptive events during 23-28 June ejected bombs 600 m and produced ash plumes that rose as high as 2.3 km.

from WordPress https://ift.tt/3AhFFfQ