Platform: AndroidPrice: Free
What's one seismology data source against six? Though simple in title, Earthquakes funnels data from several international sources, including the Japan Meteorological Agency, U.S. Geological Survey, EU Mediterranean Earthquake Centre, and others. Searches for historical quakes can be filtered by shake-i-tude (or, magnitude), time, terrain depth, and world region. Map views can be toggled from satellite view to traffic view (to help Californians pinpoint the traffic jams caused by plate shifts, for instance).