Volcano Update from Archive



AVO/USGS Volcanic Activity Notice

Volcano: Kasatochi (CAVW #1101-13-)

Current Volcano Alert Level: ADVISORY
Previous Volcano Alert Level: NONE

Current Aviation Color Code: YELLOW
Previous Aviation Color Code: NONE

Issued: Thursday, September 4, 2008, 2:26 PM AKDT (20080904/2226Z)
Source: Alaska Volcano Observatory
Notice Number: 2008/A29
Location: N 52 deg 10 min W 175 deg 30 min
Elevation: 1030 ft (314 m)
Area: Aleutians Alaska

Volcanic Activity Summary: Seismic activity at Kasatochi volcano has declined significantly since the eruptions on August 7. No activity has been observed in satellite data since August 12. Therefore AVO is lowering the aviation color code from ORANGE to YELLOW and the Alert Level from Watch to Advisory.

Remarks: Kasatochi Volcano does not have a seismic network, thus AVO depends on networks on neighboring islands to monitor activity there. For this reason, low-level seismic activity may not be detected. Renewed volcanic activity is possible at any time with little or no warning.

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

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

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.
(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:(20080904/2226Z)
(3) Volcano:Kasatochi (CAVW# 1101-13-)
(4) Current Color Code:YELLOW
(5) Previous Color Code:
(6) Source:Alaska Volcano Observatory
(7) Notice Number:2008/A29
(8) Volcano Location:N 52 deg 10 min W 175 deg 30 min
(9) Area:Aleutians Alaska
(10) Summit Elevation:1030 ft (314 m)
(11) Volcanic Activity Summary:Seismic activity at Kasatochi volcano has declined significantly since the eruptions on August 7. No activity has been observed in satellite data since August 12. Therefore AVO is lowering the aviation color code from ORANGE to YELLOW and the Alert Level from Watch to Advisory.
(12) Volcanic cloud height:Unknown
(13) Other volcanic cloud information:Unknown
(14) Remarks:Kasatochi Volcano does not have a seismic network, thus AVO depends on networks on neighboring islands to monitor activity there. For this reason, low-level seismic activity may not be detected. Renewed volcanic activity is possible at any time with little or no warning.
(15) Contacts:Tom Murray, Scientist-in-Charge, USGS
tlmurray@usgs.gov (907) 786-7497

Steve McNutt, Coordinating Scientist, UAF
steve@giseis.alaska.edu (907) 474-7131
(16) Next Notice:A new VONA will be issued if conditions change significantly or alert levels are modified. While a VONA is in effect, regularly scheduled updates are posted at http://www.avo.alaska.edu