GLOBAL VOLCANISM: The Volcano Report For April 3, 2014 – Frequent Small Ash Explosions At The Reventador Volcano In Ecuador; Slow Lava-Dome Extrusion At Kamchatka’s Shiveluch Volcano; Moderate Explosions At Peru’s Ubinas Volcano Forces Mass Evacuations; And Moderate Seismic Activity At Ecuador’s Tungurahua Volcano! [PHOTOS]

April 04, 2014 – WORLDWIDE VOLCANOES – The following constitutes the new activity, unrest and ongoing reports of volcanoes across the globe.

Ubinas (Peru): The volcano has increased its visible activity and produced several more small to medium-sized explosions over the past days. Ash plumes rose up to about 2 km height.

Ash emission from Ubinas.

Residents of Querapi village had started to evacuate. Ashfall was reported in Ubinas and Querapi.

Shiveluch (Kamchatka):  No significant changes in activity occurred recently. The volcano remains active. Slow lava-dome extrusion continues accompanied by ash explosions, incandescence, hot avalanches, and fumarolic activity.

A bright thermal anomaly was detected daily in satellite images. The Aviation Color Code remained at Orange. (USGS / KVERT)

Reventador (Ecuador): Activity remains high. The volcano produces frequent small ash explosions and lava extrudes in a new flow on the upper eastern flank.

Explosion at Reventador.

Most of the time, the volcano is in clouds and only occasionally allows direct observations.

Tungurahua (Ecuador): The volcano continues to be restless with moderate seismic activity. Short emissions occurred occasionally during the past days, but most of them were inferred by seismic signals and could not be observed directly due to cloud cover.

Current seismic signal from Tungurahua (RETU station, IG)

Minor ashfall was reported in El Manzano (8 km SW) and Cahuaji on 26 March. Seismicity was at moderate levels and then declined during 28 March-1 April. Lahars on 31 March traveled down the VascĂșn (N) and Mapayacu (SW) drainages, carrying blocks up to 1 m in diameter in the latter drainage (from the latest Smithsonian / USGS Weekly Volcanic Activity Report).

Complete Earthquake list (worldwide) for April 3, 2014.

Volcano Discovery.

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