OREGON STATE UNIVERSITY

Activity in Kamchatka

Four active volcanoes located on the Kamchatka Peninsula in Russia were caught erupting simultaneously on January 11, 2013! This is no real suprise as the Kamchatka Peninsula has the highest concentration of active volcanoes on Earth, but to have images of Shiveluch, Bezymianny, Plosky-Tolbachik, and Kizimen volanoes (see map below) erupting at the same time is quite spectacular. The activity of the four volcanoes was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA's Terra satellite during a single orbit. An amazing satellite photo of Tolbachik volcano is shown below, which is one of the few shield volcanoes on Kamchatka. The photo shows the thin, runny lava flows forming low and broad flows much like those formed in Hawai'i and the hot lava actually glowing in near-infrared light. The image above is of a lava fountaining on Polsky Tolbachik courtesy of Kamchatka Volcanic Eruption Response Team (KVERT). 

Activity at Tungurahua Volcano, Ecuador

 

There has been an increase in activity at Tungurahua volcano, a steep-sided, 16,479-foot stratovolcano located in Ecuador in August 2012. The volcano is one of Ecuador's most active volcanoes (the volcano has erupted periodically since 1999) and sits roughly 140 km south of the capital city of Quito. The most recent avticity at Tungurahua included 16 large explosions on August 20th. As nearby villagers heard the explosions, avalanches of incandescent material rolled 1.5 km down the flanks of the volcano during that evening. 

Cleveland Volcano Explosively Erupts in Alaska

Cleveland Volcano, a 5,676 foot tall remote volcano in the Aleutians recently erupted explosively to shoot a thin cloud of ash several miles into the sky. The activity was reported by the Alaska Volcano Observatory and one pilot who was flying in the area estimated that the ash cloud rose to 35,000 feet above sea level. Seismologists with the U.S. Geological Survey mentioned that the voclanic acitivity was in the form of one explosion, which is typical of the activity seen from Cleveland over the past year. Satellite images taken around the time that the pilot reported the ash plume show only a thin ash cloud around the volcano, which makes its seem as though the eruption was relatively short-lived and only posed a slight hazard to aircraft.