News and Updates on Volcanoes and Earthquakes

The eruption continues with the actively growing lava dome. ... Leer todo

The Wellington VAAC reported that low-level steam-and-gas emissions from Whakaari/White Island contained minor amounts of ash during 1-2 and 6 April. The emissions rose 0.9-1.8 km (3,000-6,000 ft) a.s.l. and drifted S and SE based on webcam and satellite images. ... Leer todo

The Japan Meteorological Agency (JMA) reported that eruptive activity at Suwanosejima's Ontake Crater continued during 31 March-7 April. Incandescence was observed nightly in webcam images. An explosion at 2050 on 1 April generated an ash plume that rose 600 m above the crater and ejected large blocks as far as 200 m from the vent. ... Leer todo

The Sezione di Catania - Osservatorio Etneo (INGV) reported that eruptive activity continued at Stromboli during 31 March-6 April. Webcam images showed Strombolian activity at four vents in Area N within the upper part of the Sciara del Fuoco and from at least two vents in Area C-S (South-Central Crater) on the crater terrace. The vents in Area N continued to produce low- to medium-intensity explosions at a rate of 8-12 events per hour, ejecting lapilli and bombs less than 150 m above the vents. ... Leer todo

The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that lava extrusion may have continued at Sheveluch's “300 years of RAS” dome on the SW flank of Old Sheveluch and at the Young Sheveluch dome during 27 March-3 April. Thermal anomalies over the domes were identified in satellite images during 30-31 March and 1-3 April; weather clouds obscured views on the other days. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). ... Leer todo

The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that activity continued at Semeru during 2-8 April, with multiple eruptive events recorded daily by the seismic network. Dense white-and-gray ash plumes rose 400-900 m above the summit and drifted in multiple directions; plumes were not visible on 2 April. The Alert Level remained at 2 (the second lowest level on a scale of 1-4). ... Leer todo

The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported ongoing, high-level eruptive activity at Santa Maria's Santiaguito dome complex during 2-8 April with continuing lava extrusion at Caliente dome. Daily explosions, as many as five per hour when reported, generated gas-and-ash plumes that rose as high as 1.2 km above the dome and possibly drifted as far as 40 km N, NW, W, and SW. Effusion of blocky lava and collapses of material produced block avalanches that were sometimes heard several kilometers away; these mainly descended the SE, S, SW, and W flanks. ... Leer todo

The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that moderate levels of eruptive activity continued at Sangay during 1-8 April. The seismic network recorded 36-185 daily explosions. Weather clouds obscured views most of the week, but on most of the days several gas-and-ash plumes were visible rising as high as 2 km above the summit and drifting SW. ... Leer todo

The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that eruptive activity continued at Reventador during 1-8 April. Seismicity included 52-127 daily explosions, long-period earthquakes, harmonic tremor, and tremor associated with emissions. Multiple daily ash-and-gas plumes rose as high as 1.3 km above the crater rim and drifted mainly NW, W, and SW. ... Leer todo

The Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG) reported that the eruption at Merapi (on Java) continued during 28 March-4 April. Seismicity was at higher levels than the previous week. The SW lava dome produced 28 lava avalanches that traveled as far as 1.8 km SW down the Bebeng drainage, 50 that traveled as far as 1.8 km SW down the Krasak drainage, and 37 that traveled as far as 1.8 km W down the Sat/Putih drainage. ... Leer todo