Dozens of mini-earthquakes have rattled Alaska's Mount Spurr recently, sparking fears among scientists that the towering 11,000-foot volcano may be on the verge of a major eruption.
About Mount Spurr:
It is an ice- and snow-covered active stratovolcano complex located in the north-central Cook Inlet region about 100 kilometers west of Anchorage, Alaska, United States.
The volcano sits at the south edge of a break in the Alaska Range.
It is composed mostly of andesite.
It consists of a breached stratovolcano, a lava dome at the summit of Mount Spurr, and Crater Peak vent, a small stratocone on the south flank of Mount Spurr volcano.
The mountain is 3,000 meter high and is topped with a 5 by 6 km caldera.
The mountain suffered a crater collapse around 10,000 years ago that created Chakachamna Lake.
There is an active icefield in the caldera and multiple glaciers.
The volcano last erupted in 1992, that resulted in heavy ashfall and affected air travel in the region.
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