Roundup of Global Volcanic Activity – Ongoing activity for the week of 16 November-22 November 2016
Dukono | Halmahera (Indonesia) : Based on analyses of satellite imagery and model data, the Darwin VAAC reported that during 16 and 18-22 November ash plumes from Dukono rose to altitudes of 2.1-3 km (7,000-10,000 ft) a.s.l. and drifted in multiple directions.
Fuego | Guatemala : INSIVUMEH reported that during 16-17 and 19 November explosions at Fuego generated ash plumes that rose 650-950 m above the crater rim and drifted 12 km W, SW, and S. Incandescent material was ejected as high as 200 m causing minor avalanches confined to the crater. The 15th Strombolian episode in 2016 began on 20 November. Lava fountains rose as high as 300 m and fed three lava flows which traveled 1 km S down the Trinidad drainage, 2 km SSW down the Ceniza drainage, and 2.5 km SE down the Las Lajas drainage. Explosions generated ash plumes that rose as high as 1.3 km and drifted 15 km S and SW. Ashfall was reported in areas downwind including Morelia (9 km SW), Santa Sofía (12 km SW), and Panimaché I and II (8 km SW). Lava fountains continued to rise 300 m above the crater rim on 21 November and avalanches of material descended the Santa Teresa (W) and Taniluyá (SW) drainages. Ash plumes rose 1.3 km and drifted 20 km S, SW, and W, causing ashfall again in Morelia, Santa Sofía, and Panimaché I and II. INSIVUMEH noted that on 22 November the Strombolian eruptive phase had ended. Ash plumes continued to be generated, rising as high as 1.8 km and drifting more than 10 km S and SW.
Kilauea | Hawaiian Islands (USA) : During 16-22 November HVO reported that the lava lake continued to rise and fall, circulate, and spatter in Kilauea’s Overlook vent; the lake level rose as high as 7.5 m below the Halema’uma’u floor. Webcams recorded incandescence from long-active sources within Pu’u ‘O’o Crater. The 61G lava flow, originating from a vent on Pu’u ‘O’o Crater’s E flank, continued to enter the ocean near Kamokuna at the easternmost lava delta.
Klyuchevskoy | Central Kamchatka (Russia) : KVERT reported that on 17 November an ash plume from Klyuchevskoy visible in satellite images rose to an altitude of 5 km (16,400 ft) a.s.l. and drifted almost 60 km WNW. The Aviation Color Code remained at Yellow.
Nevado del Ruiz | Colombia : Based on information from the Bogota MWO, the Washington VAAC reported on 16 November an ash plume from Nevado del Ruiz rose to an altitude of 6.7 km (22,000 ft) a.s.l. and drifted NE. Weather clouds prevented satellite views.
Nevados de Chillan | Chile : The Buenos Aires VAAC reported that on 18 November an ash puff from Nevados de Chillán was recorded by the webcam. SERNAGEOMIN reported that two explosions, detected at 0536 on 18 November, generated a plume that rose 1.2 km above the crater rim.