America’s Volcanoes

An eruption occurred today at Cleveland in Alaska. Two boats reported seeing a mushroom could over the volcano and now AVO reports pilots are seeing an ash cloud. The Cleveland volcano webcam is behind low clouds.

AVO/USGS Volcanic Activity Notice

Volcano: Cleveland

Current Volcano Alert Level: WATCH
Previous Volcano Alert Level: ADVISORY

Current Aviation Color Code: ORANGE
Previous Aviation Color Code: YELLOW

Issued: Monday, July 21, 2008, 1:16 PM AKDT (20080721/2116Z)
Source: Alaska Volcano Observatory
Notice Number: 2008/A14
Location: N 52 deg 49 min W 169 deg 56 min
Elevation: 5676 ft (1730 m)
Area: Aleutians Alaska

Volcanic Activity Summary: Reports from fishing boats indicate an eruption of Cleveland volcano occurred at approximately 12:00 AKDT (20:00 UTC). These reports indicate that at sea level the ash may be moving to the northwest. AVO has no information about the height of the ash cloud at this time.

Remarks: AVO monitors Cleveland Volcano with satellite imagery as weather allows. The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions of ash that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery. Please see http://www.avo.alaska.edu/activity/Cleveland.php for more information.