• Earthquakes of the 20th Century

    This animation shows every recorded earthquake in sequence as they occurred from January 1, 1901, through December 31, 2000, at a rate of 1 year per second. The earthquake hypocenters first appear as flashes then remain as colored circles before shrinking with time…

  • Animation of earthquakes in Oklahoma between 2004 and 2016

    Many studies have investigated the relationship between seismic activity and wastewater injection, particularly in Oklahoma where scientists recorded a 4 000% increase in the rate of earthquakes between 2008 and 2016. Now, the USGS in Oklahoma has released an…