today – 4/20
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Today – 4/20Today – 4/20 Volcano Volcano
summarysummary Mt PinatuboMt Pinatubo EvaluationsEvaluations
Fissure Eruption Kilauea January Fissure Eruption Kilauea January 19831983
Royal Gardens Subdivision June Royal Gardens Subdivision June 19831983
September 1983September 1983
August 1983August 1983
Puu O’o and Sunset CraterPuu O’o and Sunset Crater
Mt St Helens v. San Francisco Mt St Helens v. San Francisco PeaksPeaks
XC Today
Noon, Gallagher theater
Last Time
Yellowstone – hotspot caldera explosions
Long Valley caldera – signs of unrest: ground swell, eqs, dying trees and animals
Movement of energy drives physical (and biological) processes
In the interiors of moons of large planets, heat is generated by “tidal friction”, i.e. gravitational energy is transformed into thermal energy, driving volcanism
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