Cleveland Volcano remains at ORANGE

June 20, 2012


Cleveland Volcano, June 2012According to the Alaska Volcano Observatory, no further explosive activity has been detected at Cleveland Volcano following the event at 2:05 p.m. Alaska Daylight Time yesterday. The small ash emission resulting from that explosion was last visible in satellite data east-southeast of the volcano this morning before dissipating. Due to the increased likelihood of explosive activity at Cleveland, the Aviation Color Code/Volcano Alert Level remains at ORANGE/WATCH.


Additional sudden explosions of blocks and ash are possible with little or no warning. It is possible for associated ash clouds to exceed 20,000 feet above sea level. If a large ash-producing event occurs, seismic, infrasound, or volcanic lightning networks should detect the event and alert AVO staff. There is no real-time seismic monitoring network on Mount Cleveland so AVO is unable to track activity in real time.


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PHOTO CAPTION/CREDIT: The true color Worldview-2 image of Cleveland Volcano was collected on June 9, 2012. Image courtesy of D. Schneider.