ALASKA VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Tuesday, July 28, 2009, 1:35 PM AKDT (Tuesday, July 28, 2009, 21:35 UTC)

REDOUBT VOLCANO (VNUM #313030)
60°29'7" N 152°44'38" W, Summit Elevation 10197 ft (3108 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

No significant changes have been observed at Redoubt volcano over the past 24 hours. Seismicity remains low. Clouds continue to obscure satellite and web camera images. The 2009 lava dome remains potentially unstable, and its collapse would likely result in significant ash production, block and ash flows, and flooding in the Drift River valley. AVO continues to closely monitor Redoubt's activity.

SHISHALDIN VOLCANO (VNUM #311360)
54°45'19" N 163°58'16" W, Summit Elevation 9373 ft (2857 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Cloudy conditions have obscured satellite passes within the last 24 hours. Seismic and deformation data show nothing abnormal at the volcano, and there is currently no indication that an eruption will occur. Minor steaming is expected to be ongoing, which is typical behavior for this volcano. AVO will continue to closely monitor activity at Shishaldin.



CONTACT INFORMATION:

Tom Murray, Scientist-in-Charge, USGS
tlmurray@usgs.gov (907) 786-7497

Steve McNutt, Coordinating Scientist, UAF
steve@giseis.alaska.edu (907) 474-7131

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.

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