Man-Made Earthquake Hotspot Revealed: Oklahoma

The chances of a damaging earthquake occurring in parts of Oklahoma and some neighboring states are just as likely as they are in temblor-heavy California, according to a report by the U.S. Geological Survey (USGS). Man-made activities related to oil and gas production are creating the shaky conditions in a region of the central and eastern U.S., the USGS seismologists say. USGS scientists just released their first map that includes earthquake risks from both natural and human-induced causes for