Volcanos

Roundup of Global Volcanic Activity – New Activity for the week 18 May – 24 May 2022

Bezymianny – Central Kamchatka (Russia) : On 24 May KVERT reported that the effusive eruption at Bezymianny continued, characterized by strong fumarolic emissions, lava-dome incandescence, and hot avalanches. Notable hot avalanches descended the E flank. Gas-and-steam plumes with some ash content drifted 30 km NW on 24 May and 25 km NE on 25 May, at altitudes of 3-4.5 km (9,800-14,800 ft) a.s.l.

Cleveland – Chuginadak Island (USA) : AVO reported that during 17-24 May almost daily elevated surface temperatures over Cleveland were identified in satellite images. Daily sulfur dioxide emissions were visible, and steam plumes rose from the crater during 22-24 May. A series of small, local earthquakes were detected on 18 May.

Krakatau – Sunda Strait : The Darwin VAAC reported that on 18 May a diffuse ash plume from Anak Krakatau rose to 2.4 km (8,000 ft) a.s.l. and drifted WNW based on satellite images and weather models. On 19 May a dense steam plume with diffuse ash rose to 2.4 km and drifted N.

Reykjanes – Reykjanes Peninsula : IMO reported an ongoing seismic swarm and uplift on the Reykjanes Peninsula, indicative of a magma intrusion. Satellite data analysis indicated that 4-4.5 cm of uplift occurred during 27 April-21 May centered just NW of Mt. Thorbjorn. Magma was accumulating at depths of 4-5 km, and the intrusion was possibly 7-8 km long. During 22-23 May about 400 earthquakes were recorded; a M 3 earthquake was recorded at 1113 on 22 May and a M 3.5 earthquake was recorded at 0715 on 23 May, both were located about 3 km E of Mt. Thorbjorn.

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