Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, R.G. McGimsey, U.S. Geological Survey. |
Fallout of coarse material from the spreading tephra-cloud resulted in a narrow zone of deposition on the ground. This is a Photo of the deposit from the August 18 eruption. Sixteen cm of lapilli and coarse sand representing about 3.5 hours of fallout accumulated 8 km downwind of the vent. The different colors within the tephra-lighter at the base and darker at the top-may represent some pre-eruption chemical and textural heterogeneities within the magma stored beneath Crater Peak. Image Credit: R.G. McGimsey. U.S. Geological Survey Photo Date: September 9, 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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