The Earthquakes Widget shows a world map with the latest earthquake information from USGS. Earthquakes are shown as circles, with a larger circle indicating a larger earthquake. Quakes within the last day are shown in yellow, those within the last week are shown in green. Right-click (or Ctrl-click on OS X) allows you to zoom in or out and open the USGS earthquake information page for any earthquake. Earthquake information is automatically refreshed about every three hours.