FILE – This Jan. 28, 2013 file photo Seismologist, Dr. Lucy Jones, describes how an early warning system would provide advance warning of an earthquake, at a news conference at the California Institute of Technology in Pasadena, Calif. Jones, the face of earthquake science and safety in Southern California, is retiring from the U.S. Geological Survey. Jones said in a Twitter posting Friday, March 18, that she’s leaving federal service but will remain at the California Institute of Technology. (AP Photo/Reed Saxon,File)