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Contains four informative interactive computer programs based on global-scale data-sets for earthquakes and volcanic eruptions since 1960: Earthquakes Through Time, Eruptions Through Time, Seismic ...
Contains four informative interactive computer programs based on global-scale data-sets for earthquakes and volcanic eruptions since 1960: Earthquakes Through Time, Eruptions Through Time, Seismic Waves, and the Smithsonian Exhibit Version.