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AVO/USGS Volcanic Activity Notice

Volcano: Veniaminof (CAVW #1102-07-)

Current Volcano Alert Level: NORMAL
Previous Volcano Alert Level: ADVISORY

Current Aviation Color Code: GREEN
Previous Aviation Color Code: YELLOW

Issued: Saturday, May 3, 2008, 8:03 AM AKDT (20080503/1603Z)
Source: Alaska Volcano Observatory
Notice Number: 2008/A5
Location: N 56 deg 11 min W 159 deg 23 min
Elevation: 8225 ft (2507 m)
Area: Alaska Peninsula Alaska

Volcanic Activity Summary: Though still above past background levels, the intensity and rate of seismicity at Veniaminof has declined over the last several weeks. Activity at the intracaldera cone currently consists of intermittent, low-level steam emissions. No ash emissions nor elevated surface temperatures have been observed in satellite data or webcam imagery since early March 2008. Based on these observations, AVO concludes that significant volcanic activity is not likely to occur in the near future and is therefore lowering the Aviation color code to GREEN and the Alert Level to NORMAL at Veniaminof.

Recent Observations:
[Monitoring report] Occasional low-level steam emissions from the intracaldera cone are visible on web camera imagery.

Hazard Analysis:
[General hazards] There are no indications that vigorous activity is imminent or likely. Occasional steam emission from the intracaldera cone is typical of normal activity at Veniaminof.

Remarks: AVO will continue to monitor activity at Mount Veniaminof using seismic data, satellite images, internet camera data and observer reports.Please see http://www.avo.alaska.edu/activity/Veniaminof.php for more information.

Contacts: Christina Neal, Acting Scientist-in-Charge, USGS
tneal@usgs.gov (907) 786-7497

Ken Dean, Acting Coordinating Scientist, UAFGI
kdean@gi.alaska.edu (907) 322-4085

Next Notice: A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at http://www.avo.alaska.edu

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.


AVO/USGS Volcanic Activity Notice

Volcano: Veniaminof (CAVW #1102-07-)

Current Volcano Alert Level: NORMAL
Previous Volcano Alert Level: ADVISORY

Current Aviation Color Code: GREEN
Previous Aviation Color Code: YELLOW

Issued: Saturday, May 3, 2008, 8:03 AM AKDT (20080503/1603Z)
Source: Alaska Volcano Observatory
Notice Number: 2008/A5
Location: N 56 deg 11 min W 159 deg 23 min
Elevation: 8225 ft (2507 m)
Area: Alaska Peninsula Alaska

Volcanic Activity Summary: Though still above past background levels, the intensity and rate of seismicity at Veniaminof has declined over the last several weeks. Activity at the intracaldera cone currently consists of intermittent, low-level steam emissions. No ash emissions nor elevated surface temperatures have been observed in satellite data or webcam imagery since early March 2008. Based on these observations, AVO concludes that significant volcanic activity is not likely to occur in the near future and is therefore lowering the Aviation color code to GREEN and the Alert Level to NORMAL at Veniaminof.

Recent Observations:
[Monitoring report] Occasional low-level steam emissions from the intracaldera cone are visible on web camera imagery.

Hazard Analysis:
[General hazards] There are no indications that vigorous activity is imminent or likely. Occasional steam emission from the intracaldera cone is typical of normal activity at Veniaminof.

Remarks: AVO will continue to monitor activity at Mount Veniaminof using seismic data, satellite images, internet camera data and observer reports.Please see http://www.avo.alaska.edu/activity/Veniaminof.php for more information.

Contacts: Christina Neal, Acting Scientist-in-Charge, USGS
tneal@usgs.gov (907) 786-7497

Ken Dean, Acting Coordinating Scientist, UAFGI
kdean@gi.alaska.edu (907) 322-4085

Next Notice: A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at http://www.avo.alaska.edu

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.
VOLCANO ALERT LEVELS
NORMAL
Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.
ADVISORY
Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
WATCH
Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway but poses limited hazards.
WARNING
Hazardous eruption is imminent, underway, or suspected.
AVIATION COLOR CODES
GREEN
Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.
YELLOW
Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
ORANGE
Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway with no or minor volcanic-ash emissions [ash-plume height specified, if possible].
RED
Eruption is imminent with significant emission of volcanic ash into the atmosphere likely OR eruption is underway or suspected with significant emission of volcanic ash into the atmosphere [ash-plume height specified, if possible].
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URL: www.avo.alaska.edu/activity/avoreport.php
Page modified: January 21, 2016 16:41
Contact Information: AVO Web Team

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