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Mount Spurr description and information.
| Official Name: | Mount Spurr |
|---|---|
| Type: | Stratovolcano and explosion caldera |
| Most Recent Activity: | September 16, 1992 |
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Is Mount Spurr still active?
Several ice-carved post-caldera domes lie in the caldera. Present Mt. Spurr is the highest of the post-caldera....Mount SpurrMountain typeStratovolcanoVolcanic arc/beltAleutian ArcLast eruptionJune to September 1992Climbing15 more rows
When was the last time Mount Spurr erupted?
On 27 June, 1992, the Crater Peak vent on the south side of Mt. Spurr awoke from 39 years of dormancy and burst into sub-plinian eruption after 10 months of elevated seismicity.
How many times has Mount Spurr erupted?
Spurr's two historical eruptions, from Crater Peak in 1953 and 1992, deposited ash on the city of Anchorage. The 3374-m-high summit of Mount Spurr, the highest volcano of the Aleutain arc, is a large lava dome constructed at the center of a roughly 5-km-wide horseshoe-shaped caldera that is open to the south.
Is Mount St Augustine active?
Beget, J. E., and Kienle, J., 1992, Cyclic formation of debris avalanches at Mount St Augustine volcano: Nature, v. 356, n. 6371, p. 701-704....Augustine Volcano description and information.Official Name:Augustine VolcanoType:Central dome clusterMost Recent Activity:December 2005Seismically Monitored:Yes9 more rows
What type of volcano is Spurr?
Quaternary stratovolcanoFrom Miller and others (1998): "Mount Spurr is a Quaternary stratovolcano located near the northeastern end of the Aleutian volcanic arc.
What volcano can you see from Anchorage?
Mount Spurr Volcano | Visible from Anchorage | ALASKA.ORG.
How high is Mount Spurr?
11,070′Mount Spurr / Elevation
Where are the volcanoes in Alaska?
WHERE ARE ALASKAN VOLCANOES LOCATED? Most of Alaska's volcanoes are located along the 2,500- kilometer-long (1,550-mile-long) Aleutian Arc, which extends westward to Kamchatka and forms the northern portion of the Pacific "ring of fire" (interactive map).
Where is the Iliamna volcano?
southwest AlaskaMount Iliamna (Dena'ina: Ch'naqał'in; Sugpiaq: Puyulek) is a glacier-covered stratovolcano in the largely volcanic Aleutian Range in southwest Alaska....Mount IliamnaLocationLake Clark National Park and PreserveCountryUnited StatesStateAlaskaRegionKenai Peninsula Borough23 more rows
What year did Augustine last erupt?
After several days with no ash emissions and relatively low seismicity, Augustine erupted again on 27 January around 2001, with the most vigorous activity beginning around 2024. The eruption lasted about 9 minutes.
What state contains 75% of all volcanoes in the US?
"There are about 169 volcanoes in the United States that scientists consider active. Most of these are located in Alaska, where eruptions occur virtually every year.
When did mt Augustine erupt?
Augustine Volcano, the most historically active volcano in Alaska's Cook Inlet region, again showed signs of life in April 2005. Escalating seismic unrest, ground deformation, and gas emissions culminated in an eruption from January 11 to mid-March of 2006, the fifth major eruption in 75 years.
When did Spurr last rumble awake?
One of the most active volcanoes in Alaska, Spurr last rumbled awake in 2012. The Alaska Volcano Observatory monitors Spurr all of the time, 24-7.
What volcano is located on the southern buttress of the Tordrillo Range?
Mount Spurr Volcano. Mount Spurr forms the southern buttress of the Tordrillo Range, with an active vent on Crater Peak below the summit.
Is Spurr on the highway?
Spurr and its approaches are not on the Alaska highway system, and there is no practical overland route. For most visitors, stepping foot on Spurr or viewing the mountain up close basically requires chartering an aircraft or hiring an expert guide.
What color is Mount Spurr?
The 2004 unrest at Mount Spurr ( BGVN 29:10) continued for nearly two years before the Alaska Volcano Observatory (AVO) lowered the Level of Concern Color Code from Yellow to Green (on a scale from Green to Yellow to Orange to Red) on 21 February 2006. During those two years, hydrothermal and fumarolic activity within the ice-filled summit crater resulted in the formation of a summit ice cauldron and emplacement of debris-flow deposits on the upper slopes of Spurr. The summit crater and cauldron remained active after most other signs of unrest had declined. This report discusses observations of the development of the unrest following November 2004 (activity prior to that time covered in BGVN 29:10).
When was Mount Spurr photographed?
Photograph of Mount Spurr's summit (viewing SSW) on 20 June 2004, showing the initial development of a depression (dashed outline) in the ice and snow covering the summit. Crevassing of the snow and ice downslope is indicated by arrows. This is the earliest image of the 2004 development of the summit ice cauldron.
When was Spurr seismicity detected?
AVO reported that a minor increase in seismicity at Spurr was detected at about 0500 on 25 June, lasted about 45 minutes, and was characterized by several discrete M1earthquakes. The signals recorded were consistent with seismic energy generated by an energetic flow of water, possibly indicating a glacial outburst flood on the lower S flank. The next day seismic levels had declined to near background and no additional flowage signals were observed.
Learn about this topic in these articles
Mount Spurr erupted in 1954 and remains active, as do Mounts Redoubt (1968) and Augustine (1976).
Alaskan Mountains
Mount Spurr erupted in 1954 and remains active, as do Mounts Redoubt (1968) and Augustine (1976).
Where is Mount Spurr in 2021?
May 17, 2021. Mount Spurr is an active volcano in the Aleutian Arc of Alaska. (Cyrus Reed/Alaska Volcano Observatory/U.S. Geological Survey) Two companies are looking at the geothermal energy potential of Mount Spurr, an active volcano across the Cook Inlet from Anchorage.
Is Mount Spurr a geothermal power plant?
It’s the latest push to harness and develop geothermal energy from the 11,100-foot volcano, a feat no company has accomplished — at least not yet. The state has held geothermal lease sales for Mount Spurr since the 1980s. The basic idea of geothermal is to harness heat contained below the earth’s surface, in the form of steam and water.
Is geothermal exploration allowed in Alaska?
He’s proposed legislation that would, in part, allow companies to lease and explore nearly double the acreage they’re currently allowed.
Is Mount Spurr a volcano?
While Mount Spurr is an active volcano, with a lot of trapped, simmering heat, it doesn’t have “clear surface expressions” to indicate where to drill, said Gwen Holdmann, director of the Alaska Center for Energy and Power in Fairbanks. Gov. Mike Dunleavy’s administration wants to make geothermal exploration in Alaska easier for interested ...
Is Mount Spurr geothermal?
But part of the challenge of developing geothermal at Mount Spurr has been locating the resource, said Steve Masterman, director of the state’s Division of Geological and Geophysical Surveys. “Understanding the geology is really a key part to that,” he said. While Mount Spurr is an active volcano, with a lot of trapped, simmering heat, ...
Is Raser Power a geothermal company?
The other, Raser Power, is based in Utah, and filed for bankruptcy in 2011 in relation to a geothermal plant there. The companies are hoping to have better luck than those that made previous attempts. About a decade ago, surveyors tried and failed to find hot water reservoirs at Mount Spurr.