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Posts Tagged ‘redoubt erupts’

Redoubt Volcano Erupts Explosively

Posted by feww on March 28, 2009

Published at: March 28, 2009 06:05 UTC (March 27, 2009 22:05 AKDT)

Redoubt Volcano Latest Observations (Source: AVO)

2009-03-27 21:55:58 AKDT
At 19:25 AKDT March 27, 2009 (3:25 UTC March 28) an explosive eruption occurred at Redoubt volcano.
National Weather Service reports an ash cloud height of about 51,000 feet above sea level. This follows closely behind the eruption that occurred at approximately 17:35 AKDT (01:35 UTC) that sent ash to an estimated height of 40,000 feet above sea level.
See the National Weather Service Redoubt Coordination Page for any ash fall advisories: http://pafc.arh.noaa.gov/volcano.php

For background information and selection of previous images see:

For Latest Images see below:


Photograph of impact from the volcanic ash fall out in Nikiski, AK from Redoubt volcano. This plume was generated during the March 28, 15:29 AKDT, 2009 event, and ash fall began at approximately 16:16 AKDT and lasted maybe 5 minutes. Fine ash is resuspended as vehicles drive over the recently deposited ash fall deposit. Picture Date: March 30, 2009 16:45:00 AKDT. Image Creator:  Kristi
Wallace. Image courtesy of AVO/USGS.


Photograph of Redoubt’s March 27, 19:25 eruption cloud, as seen from near Homer. Photograph courtesy of Dennis Anderson. Picture Date: March 27, 2009 19:57:00. Image Creator: Dennis Anderson. Image courtesy of Dennis Anderson (via AVO)  http://www.auroradude.com


Photograph taken during oberservation / gas collection flight to Redoubt Volcano on March 26, 2009. Image Creator:
Tina Neal. Image courtesy of AVO/USGS.


Ash cloud seen in the geostationary MTSAT data, courtesy of the National Weather Service, processed by the Cooperative Institute for Meteorological Satellite Studies at the University of Wisconsin-Madison . We are at the extreme edge of the view for the satellite which is over the equator in Asia. Picture Date: March 26, 2009 17:30:00 UTC. Image Creator: Jonathan Dehn. Image courtesy of the National Weather Service.


Redoubt volcano viewed from the south over the ash-covered Crescent River Valley. Picture Date: March 26, 2009 17:18:45 AKDT. Image Creator: Game McGimsey. Image courtesy of AVO/USGS.


View northeast over the piedmont lobe of the Drift Glacier and down the Drift River valley showing the effects of flooding caused by eruptions of Redoubt volcano earlier in the day. Picture Date: March 26, 2009 17:29:02 AKDT. Image Creator: Game McGimsey. Image courtesy of AVO/USGS.


Photograph taken during observation / gas collection flight to Redoubt Volcano on March 26, 2009.
Picture Date: March 26, 2009. Image Creator: Tina Neal. Image courtesy of AVO/USGS.


Photograph taken during observation / gas collection flight to Redoubt Volcano on March 26, 2009. Picture Date: March 26, 2009. Image Creator: Tina Neal. Image courtesy of AVO/USGS.


View west across Drift River of small eruption cloud over Redoubt volcano. Picture Date: March 26, 2009 16:08:16 AKDT. Image Creator: Game McGimsey. Image courtesy of AVO/USGS.


Photograph of Redoubt’s ash cloud, taken on the morning of Thursday, March 26, 2009, by Robert Cole, Peninsula Airways pilot. Image courtesy of Robert Cole and PenAir.


View of the ash-covered lower Crescent River Valley. Picture Date: March 26, 2009 17:17:25 AKDT. Image Creator: Game McGimsey. Image courtesy of AVO/USGS.

OMI sulfur dioxide satellite image from the March 23 2009 eruptive events at Redoubt volcano. Colors represent relative amount of gas with dark orange/red being the highest and blue/purple the lowest. This is from combining 2 OMI orbits for March 23 2009. AURA/OMI: 03/23/2009 20:43 – 22:34 UTC, SO2 mass: 42.152 kt; Area: 285,359 km2, SO2 max: 58.87 DU at Lon: -149.05, Lat: 61.58. These data are from NASA’s EOS-Aura satellite and its Ozone Monitoring Instrument (OMI), courtesy of Dr. Simon Carn, Michigan Technology University. Picture Date: March 25, 2009.


Photograph of ash fall at Homestead Lodge, about 35 miles south of Redoubt, on the western side of Cook Inlet. View is of the backyard, with ash. Picture Date: March 26, 2009. Image Creator:
James Isaak. Image courtesy of the photographer.


SEM image of ash particles erupted by Redoubt volcano on March 22, 2009. The ash sample was collected during the ashfall in Healy, Alaska by Pavel Izbekov on March 23, 2009. The image was acquired by Pavel Izbekov and Jill Shipman using ISI-50 Scanning Electron Microscope at the Advanced Instrumentation Laboratory, University of Alaska Fairbanks. Picture Date: March 24, 2009. Image Creator: Pavel Izbekov.  Jill Shipman. Image courtesy of the AVO/UAF-GI.

Related Links and volcano entries for March 2009:

Posted in Alaska volcanoes, ashfall, Aura Omi, EOS-Aura satellite, SO2 | Tagged: , , , , | 1 Comment »

Redoubt Erupts

Posted by feww on March 23, 2009

Redoubt volcano:
Aviation Color Code – RED
Volcano Alert Level – WARNING

On 2009-03-23 at 02:04:08 (10:04:08UTC) AVO said:

As of 2:00AM March 23, 2009, AVO has recorded FOUR large explosions at Redoubt volcano at the following times:

  • March 22 10:38PM
  • March 22 11:02PM
  • March 23 12:14AM
  • March 23 01:39AM

[Add 8 hrs to get time in UTC]

The National Weather Service has issued an Ashfall Advisory. Link: http://pafc.arh.noaa.gov/volcano.php


Crater showing rapidly melting glacier and enlarged “ice piston” feature. Picture Date: March 21, 2009. Image Creator: Cyrus Read. Image courtesy of AVO/USGS.


Top vent in the Redoubt summit crater. Picture Date: March 21, 2009. Image Creator:  Cyrus Read. Image courtesy of AVO/USGS.


Looking south at the north flank of Redoubt volcano. Ashfall limited to south crater floor, rim, and extending south-southeast. Source of ash is a vent south of the 1990 dome at an elevation of ~8300 ft. (~2, 530m). Picture Date: March 15, 2009 –  Image Creator:  Heather Bleick. Image courtesy of AVO/USGS.

AVO/USGS Volcanic Activity Notice

  • Volcano: Redoubt (CAVW #1103-03-)
  • Current Volcano Alert Level: WARNING
  • Current Aviation Color Code: RED

Issued: Sunday, March 22, 2009, 11:26 PM AKDT (20090322/0726Z)
Source: Alaska Volcano Observatory (AVO)
Notice Number: 2009/A12
Location: N 60 deg 29 min W 152 deg 44 min
Elevation: 10197 ft (3,108 m)
Area: Cook Inlet-South Central Alaska

Volcanic Activity Summary: The eruption of Mt. Redoubt continues. The height of the eruption cloud is estimated to be 50,000 ft above sea level. Further reports will be issued as more information becomes available.

Recent Observations:
[Volcanic cloud height] The height of the eruption cloud is estimated to be 50,000 ft above sea level. Further reports will be issued as more information becomes available.
[Other volcanic cloud information] Nil
[Mudflow] Mudflows are possible on Drift and Crescent Rivers.
[Ash fall] Ashfall likely in the vicinity of and downwind from the volcano.


Location of Redoubt volcano, in relationship to surrounding towns, roads, and other volcanoes. Image
Date: September 26, 2008. Image Creator: Janet Schaefer. Image courtesy of the AVO/ADGGS.

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


Mount Redoubt rises to 3108 m on the west side of Cook Inlet, 170 km SW of Anchorage. Redoubt volcano was constructed over a basement of glacially eroded Mesozoic granitic rocks, seen here in the foreground. The volcano has been very active during the Holocene, producing at least 30 tephra layers in the Cook Inlet basin stratigraphy. A steam plume rises from the summit crater, which is breached to the north, in this view from the NW following its 1989-90 eruption. Iliamna volcano is visible in the left distance. Photo by Christina Neal (U.S. Geological Survey, Alaska Volcano Observatory). Caption GVP.

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.

URGENT – WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
240 AM AKDT MON MAR 23 2009

SUSITNA VALLEY-
INCLUDING THE CITIES OF,  TALKEETNA, WILLOW, CANTWELL

THE ASHFALL ADVISORY IS NOW IN EFFECT UNTIL 8 AM AKDT THIS
MORNING.

REDOUBT VOLCANO AT 60.5N 152.7W HAS ERUPTED SEVERAL TIMES DURING
THE NIGHT. LIGHT ASHFALL HAS ALREADY BEEN REPORTED AT SKWENTNA.
LIGHT ASHFALL IS POSSIBLE THROUGHOUT THE SUSITNA VALLEY THIS
MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

AN ASHFALL ADVISORY MEANS THAT ASH WILL BE DEPOSITED IN THE
ADVISORY AREA. PEOPLE IN AREAS OF ASHFALL SHOULD SEAL WINDOWS AND
DOORS. PROTECT ELECTRONICS AND COVER AIR INTAKES AND OPEN WATER
SUPPLIES. MINIMIZE DRIVING. LISTEN TO YOUR RADIO STATION FOR
FURTHER INFORMATION.

Redoubt Ashfall – Current trajectory model. NOAA/NWS FO


Webcam image – dated March 15, 2009.  AVO/USGS

Live webcam images of various Alaskan volcanoes

Related Links:

Posted in explosions at Redoubt, SKWENTNA, Susitna Valley, Talkeetna, Willow | Tagged: , , , , | Leave a Comment »