Volcanos

Roundup of Global Volcanic Activity – New Activity for the Week 29 January 2020 – 04 February 2020

Kuchinoerabujima | Ryukyu Islands (Japan) : JMA reported that at 0521 on 3 February an eruption at Kuchinoerabujima’s Shindake Crater produced an ash plume that rose 7 km above the crater rim, based on satellite images, and ejected material 600 m away from the crater. A pyroclastic flow traveled about 900 m SW, the first one recorded since 29 January 2019. Ashfall was confirmed in the northern part of neighboring Yakushima Island (a large amount in Miyanoura, 32 km ESE) and southern Tanegashima. According to a news article the eruption caused one flight to be diverted and one to be cancelled. The Alert Level remained at 3 (the middle level on a scale of 1-5).

Rincon de la Vieja | Costa Rica : OVSICORI-UNA reported that at 1213 on 31 January a phreatic eruption at Rincón de la Vieja ejected material onto the N flanks and generated a plume that rose 2 km above the crater rim. Lahars descended rivers on the N flank and reached populated areas 7-10 km downriver around 40 minutes after the eruption.

Taal | Luzon (Philippines) : PHIVOLCS reported that whitish steam plumes rose as high as 800 m above Taal’s main vent during 29 January-4 February and drifted SW. Sulfur dioxide emissions ranged from values below detectable limits to a high of 231 tonnes per day (on 3 February). According to the Disaster Response Operations Monitoring and Information Center (DROMIC) there were a total of 23,915 people in 152 evacuation centers, and an additional 224,188 people were staying at other locations as of 3 February. The Alert Level remained at 3 (on a scale of 0-5) and PHIVOLCS recommended no entry onto Volcano Island and Taal Lake, nor into towns W of the island within a 7-km radius.

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