Mt. Redoubt Volcano

Mt. Redoubt Volcano - Current Update


Mt. Redoubt Volcano Statistics

  • Redoubt Current: Alert Level NORMAL
  • Redoubt Current: Color Code GREEN
  • Type:  Stratovolcano
  • Seismically Monitored:  Yes
  • Distance:  103 mi (166 km) from Anchorage
  • Elevation:  10197 ft (3108 m)
  • Latitude:  60.4852° N
  • Longitude:  152.7438° W
  • Quadrangle:  Kenai
  • Most Recent Activity:  March 15, 2009
  • CAVW Number:  1103-03-

Mt.Redoubt Volcano Location

Redoubt Volcano Location

Description

From Miller et al (1998): "Redoubt Volcano is a steep-sided cone about 10 km in diameter at its base and with a volume of 30-35 cubic kilometers. The volcano is composed of intercalated pyroclastic deposits and lava flows and rests on Mesozoic granitic rocks of the Alaska-Aleutian Range batholith (Till and others, 1993; 1994). It has been moderately dissected by the action of numerous alpine glaciers. A 1.8-km-wide, ice-filled summit crater is breached on the north side by a northward-flowing glacier, informally known as the Drift Glacier, which spreads into a piedmont lobe in the upper Drift River Valley. The most recently active vent is located on the north side of the crater at the head of the Drift glacier. Holocene lahar deposits in the Crescent River and Drift River valleys extend downstream as far as Cook Inlet."




 Alaska Volcano Observatory Current Update

ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Wednesday, September 18, 2019, 1:23 PM AKDT (Wednesday, September 18, 2019, 21:23 UTC)
SHISHALDIN VOLCANO (VNUM #311360)
54°45'19" N 163°58'16" W, Summit Elevation 9373 ft (2857 m)
Current Volcano Alert Level: WATCH
Current Aviation Color code: ORANGE

Low-level eruptive activity continues at Shishaldin volcano. Seismicity remains elevated with tremor detected over the past day. Satellite and web camera images were obscured by clouds over the past day.

Shishaldin is monitored by local seismic and infrasound sensors, satellite data, a web camera, a telemetered geodetic network, and distant infrasound and lightning networks.


CLEVELAND VOLCANO (VNUM #311240)
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color code: YELLOW

Unrest continues. Satellite views were obscured by clouds. Local seismic data show no new activity. No activity observed in local or infrasound arrays during the last 24 hours.

Episodes of lava effusion and explosions can occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently.

Cleveland volcano is monitored by only two seismic stations, which restricts AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning, and satellite data.


SEMISOPOCHNOI VOLCANO (VNUM #311060)
51°55'44" N 179°35'52" E, Summit Elevation 2625 ft (800 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color code: YELLOW

No significant activity was observed in the seismic data. No explosions were detected in regional infrasound data. Satellite observations were obscured by clouds over the past day. Low-level sulfur dioxide emissions continue to be observed when conditions permit. AVO has lowered the color code/activity level to YELLOW/ADVISORY.

Semisopochnoi is monitored with an on-island seismic network and remotely by satellite and lightning sensors. An infrasound array on Adak Island may detect explosive emissions from Semisopochnoi with a slight delay (approximately 13 minutes) if atmospheric conditions permit.




Source: Alaska Volcano Observatory




Mount Redoubt Volcano Cam


This is a static image of Mount Redoubt, The VolcanoCam image automatically updates approximately every two hours.
Volcano image courtesy of ...
Live webcam images of various Alaskan volcanoes
Alaska Volcano Observatory Webcam - Redoubt - DFR

Images of Mount Redoubt

Gallery 1 Gallery 2


Augustine volcano (VNUM #313010)
59.3626° N 153.435° W, Summit Elevation 4134 ft (1260 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Augustine - island webcam
webcam image



Information courtesy of ...
U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
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