Roundup of Global Volcanic Activity – New Activity for the Week 27 May 2020 – 2 June 2020

Cleveland | Chuginadak Island (USA) : A small explosion at Cleveland was recorded at 1032 on 1 June and produced an ash plume that rose to 6.7 km (22,000 ft) a.s.l. and drifted S. The local geophysical stations and web camera were unavailable due to an ongoing network outage. AVO raised the Volcano Alert Level to Watch and the Aviation colour Code to Orange.

Ijen | Eastern Java (Indonesia) : PVMBG reported that on 29 May a gas explosion at Ijen generated a plume that rose 250-500 m above the surface of the lake. According to news articles two sulfur miners heard the explosion from under the water at 1230, which created 3-m-high waves in the lake; the miners ran but one tripped and fell into the lake. Search efforts were unsuccessful after three hours and, due to weather conditions and an increased amount of gas in the crater area, had to be suspended. PVMBG noted that patterns of various types of earthquakes did not indicate increased activity during 17 Janury-29 May. The temperature of the lake water fluctuated between 24.5 and 40.3 degrees Celsius. A lot of rain in the past few months increased the volume of the lake, possibly contributing to a disruption in the system, though these seasonal changes were within normal ranges at the volcano. The Alert Level remained at 1 (on a scale of 1-4), and residents and visitors were advised to not approach the crater rim or descend to the crater floor.

Karymsky | Eastern Kamchatka (Russia) : KVERT reported that a thermal anomaly over Karymsky was visible in satellite images during 23 and 25-28 May. Ash plumes were also identified and drifted 185 km SE and SW on 24, 26, and 28 May. The Aviation colour Code remained at Orange (the second highest level on a four-colour scale).

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