(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	(20090330/1414Z)
(3) Volcano:	Redoubt (VNUM #313030)
(4) Current Color Code:	RED
(5) Previous Color Code:	RED
(6) Source:	Alaska Volcano Observatory
(7) Notice Number:	2009/A29
(8) Volcano Location:	N 60 deg 29 min W 152 deg 44 min
(9) Area:	Cook Inlet-South Central
(10) Summit Elevation:	10197 ft (3108 m)
(11) Volcanic Activity Summary:	AVO has re-analyzed the event reported as an explosive eruption at Redoubt volcano occurring at approximately 23:14 AKDT on March 29 (07:14 UTC March 30). At that time, there was heightened tremor, however, seismic and infrasound data do not show clear evidence that an explosion occurred and this will not be categorized as an explosive eruption.
(12) Volcanic cloud height:
(13) Other volcanic cloud information:
(14) Remarks:	Radar showed a cloud top above 20,000 ft above sea level at the time of heightened tremor.
(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 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

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AVO/USGS Volcanic Activity Notice

Volcano: Redoubt (VNUM #313030)

Current Volcano Alert Level: WARNING

Current Aviation Color Code: RED

Issued: Monday, March 30, 2009, 6:14 AM AKDT
Source: Alaska Volcano Observatory
Notice Number: 2009/A29
Location: N 60 deg 29 min W 152 deg 44 min
Elevation: 10197 ft (3108 m)
Area: Cook Inlet-South Central

Volcanic Activity Summary: AVO has re-analyzed the event reported as an explosive eruption at Redoubt volcano occurring at approximately 23:14 AKDT on March 29 (07:14 UTC March 30). At that time, there was heightened tremor, however, seismic and infrasound data do not show clear evidence that an explosion occurred and this will not be categorized as an explosive eruption.

Remarks: Radar showed a cloud top above 20,000 ft above sea level at the time of heightened tremor.

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

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