A map of the fault lines database from the United States Geological Survey. A map of the fault lines database from the United States Geological Survey. USGS The USGS has a faults website that ...

Scientists using the USGS National Seismic Hazard Model,created a color-coded map ... states highlighted as being at risk in... A photo shows signage for the San Andreas Fault, the main fault line ...

Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo.