Volcanos

Global Volcanic Activity - New Activity for the week of 24 April - 30 April 2019

Asosan | Kyushu (Japan) : JMA reported that during 24-29 April white plumes from Asosan’s Nakadake Crater rose 200-800 m above the crater rim. Many low-amplitude tremors and volcanic earthquakes were recorded. Sulfur dioxide emissions were generally high but on 25 April the gas emissions were very high at 4,000 tons/day, a value not exceeded since 12 March. Emissions were 3,300 tons/day on 25 April. Weak incandescence from Nakadake Crater was visible at night during 27-28 April. The Alert Level remained at 2 (on a scale of 1-5).

Klyuchevskoy | Central Kamchatka (Russia) : KVERT reported that during 21-22 April a weak thermal anomaly over Klyuchevskoy was identified in satellite images along with gas-and-steam plumes containing ash drifting 160 km E. The Aviation colour Code was raised to Orange (the second highest level on a four-colour scale).

Tengger Caldera | Eastern Java (Indonesia) : The Darwin VAAC reported that during 24-26 April white plumes of variable density rose 300-500 m above Tengger Caldera’s Bromo cone. White-to-black emissions rose 500 m above the cone on 27 April, and white-to-gray emissions rose 600 m above the cone on 29 April. The Alert Level remained at 2 (on a scale of 1-4), and visitors were warned to stay outside of a 1-km radius of the crater.