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Wednesday, August 10, 2011

Cleveland Volcano, Alaska Alert level Remains on Orange as Thermal Anomaly are observed overnight - 10th Aug 2011

Tuesday, August 9, 2011 04:05 PM (Wednesday, August 10, 2011 00:05 UTC)

52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Thermal anomaly at the summit of Cleveland volcano observed overnight in several satellite images. Effusive eruption of lava dome in summit crater possibly continuing. AVO has received no additional information or observations about unrest at the volcano.

Without a real-time seismic network on the volcano, AVO is unable to track local earthquake activity related to volcanic unrest, provide forecasts of eruptive activity, or confirmation of explosive, ash-producing events. AVO is monitoring the volcano using satellite data as it becomes available. Source

Code Definitions
ORANGE: Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, time frame uncertain, OR eruption is underway with no or minor volcanic-ash emissions [ash-plume height specified, if possible].