A broad caldera, partially surrounded by clouds left of center, cuts the summit of San Carlos volcano. This a basaltic shield volcano forms the toe on the SW side of boot-shaped Bioko (Fernando Poo) Island. This NASA Landsat view (with north to the top) also shows neighboring San Joaquin volcano, with its smaller lake-filled caldera, at the right. NASA Landsat7 image (worldwind.arc.nasa.gov)
A small explosive eruption of Cleveland on 25 June prompted AVO to raise the Volcano Alert Level and Aviation Color Code. An ash cloud that detached from the volcano was seen on satellite imagery moving S at an estimated altitude of 4.6 km.
SVERT reported that an intense thermal anomaly from Sarychev Peak was detected on satellite imagery during 24-30 June. Gas-and-steam plumes drifted NW, S, and SE.
The Smithsonian's Global Volcanism Program seeks better understanding of all volcanoes through documenting their eruptions — small as well as large — during the past 10,000 years.
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