Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, T.P. Miller, U.S. Geological Survey. |
A spectacular product of this eruption includes this example of inflated gneiss which was ejected in small quantities during each of the three eruptions in 1992. This material appeared in various states of vesicularity and is believed to represent remelted, frothy blobs of basement rock beneath Crater Peak. This material is found as separate ejecta clasts and also as inclusions in the 1992 andesite, indicating that the new magma involved in this eruption heated, partially melted, and mingled with this remobilized material prior to eruption. Image Credit: T.P. Miller. U.S. Geological Survey Photo Date: October 23, 1992 June 27, 1992 Mount Spurr USA volcano Following 39 years of inactivity, Crater Peak vent on the south flank of Mount Spurr volcano burst into eruption at 7:04 a.m. Alaska daylight time (ADT) on June 27, 1992. The Municipality of Anchorage reported nearly $2 million in damage, office closures, and cleanup costs from the August eruption. In addition, there were numerous, small-scale losses incurred by businesses. No loss of life resulted directly from the eruptions. However, two heart attacks, one fatal, from shoveling ashfall were reported in Anchorage. Event Data:
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