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Global Volcanism Program | Image GVP-05214

In early June 1992, this lake inside Crater Peak vent at Mount Spurr had a temperature of 49.7°C and a pH of 2.5. Note a circular upwelling zone about 5 m across to the upper right, and the plume rising from the talus pile on the far shore. This photo was taken on 11 June, a little more than two weeks prior to a major explosive eruption that ejected the crater lake.  Photo by Game McGimsey, 1992 (Alaska Volcano Observatory, U.S. Geological Survey).

In early June 1992, this lake inside Crater Peak vent at Mount Spurr had a temperature of 49.7°C and a pH of 2.5. Note a circular upwelling zone about 5 m across to the upper right, and the plume rising from the talus pile on the far shore. This photo was taken on 11 June, a little more than two weeks prior to a major explosive eruption that ejected the crater lake.

Photo by Game McGimsey, 1992 (Alaska Volcano Observatory, U.S. Geological Survey).

Keywords: crater | lake | crater lake


Spurr