Roundup of Global Volcanic Activity – New Activity for the Week 21 October 2020 – 27 October 2020
Bezymianny | Central Kamchatka (Russia) : Based on Tokyo VAAC notices, KVERT reported that an explosive eruption at Bezymianny began at 0822 on 22 October and produced a large ash cloud that rose as high as 9 km (29,500 ft) a.s.l. The Aviation colour Code was raised to Red, the highest level on a four-colour scale. The ash cloud identified in satellite images was 100 x 200 km in size. KVERT noted that by 1519 the eruption was over. A large ash cloud was still visible, though it had dropped to lower altitudes of 5-5.5 km (16,400-18,000 ft) a.s.l. and split into a N part (57 x 105 km) and a S part (36 x 67 km). The clouds shiftied direction and drifted as far as 811 km NW and SE. The Aviation colour Code was lowered to Orange. On 23 October a thermal anomaly over the summit was identified in satellite images and growth of a lava dome was noted. The Aviation colour Code was lowered to Yellow.
Karymsky | Eastern Kamchatka (Russia) : A new eruption at Karymsky that began on 21 October prompted KVERT to raise the Aviation colour Code to Orange (the second highest level on a four-colour scale). A thermal anomaly was identified in satellite images. During 21-23 October explosions produced ash plumes that rose as high as 6 km (19,700 ft) a.s.l. and drifted 380 km SE. An ash cloud, 30 x 60 km in area, was identified in satellite images 530 km SE from the volcano.
Klyuchevskoy | Central Kamchatka (Russia) : KVERT reported that Strombolian activity at Klyuchevskoy continued during 16-23 October and lava advanced down the Apakhonchich drainage on the SE flank. A large bright thermal anomaly was identified daily in satellite images and on 18 October an ash plume drifted 90 km E. The Aviation colour Code was raised to Orange (the second highest level on a four-colour scale) on 8 October.