USGS: 6 Facts about Human-Caused Earthquakes

By USGS, Thursday, June 11, 2015 2:00 PM

The central United States has undergone a dramatic increase in seismicity over the past 6 years. From 1973-2008, there was an average of 24 earthquakes of magnitude 3 and larger per year. From 2009-2014, the rate steadily increased, averaging 193 per year and peaking in 2014 with 688 earthquakes. So far in 2015, there have… Keep reading →http://breakingenergy.com/2015/06/11/usgs-6-facts-about-human-caused-earthquakes/?utm_source=hs_email&utm_medium=email&utm_content=18294001&_hsenc=p2ANqtz-9J6raNyaJOLEmNM-ONPhZ_sU70c5LP5aviUwn63aEul5H5RxRRyqZyUlw6iyvYKTaBItwwriu9nbhvE-fr84E8stHy7g&_hsmi=18294001