This Week’s Search Topic: Stratovolcano (Tues.-Sat.) Thanks to Circuitdesign for the topic! (There were only two pics under “Iceland”, sorry!)
Today’s Caption: “Katmai National Park and Preserve, Alaska. Katmai Caldera, a collapse feature that formed during the catastrophic eruption of nearby Novarupta Volcano in June 1912, is a steep-walled, 1.5-kilometer (1 mile) diameter crater which truncates a formerly 2,290-meter (7,513-foot) high stratovolcano. The caldera is partially filled by a blue-green lake about 250 meters (820 feet) deep. The lake level was still rising when last measured in the mid-1970’s. Beyond the caldera are the multiple peaks of Trident Volcano. Mount Mageik Volcano is the snow and ice-covered cone on the skyline. View is northeast. Photo courtesy of C. Nye, Alaska Division of Geological and Geophysical Surveys, August 1991.”
My Caption: Crater Lake, anyone?
URL For this photo: http://libraryphoto.cr.usgs.gov/cgi-bin/show_picture.cgi?ID=ID.%20S0002327
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