Maps of earthquakes and faultlines can be easily accessed over the internet and through public agencies. GIS has also been used in determining earthquake hazards such as landslides and liquefaction.

Did You Feel It?
The “Did you feel it?” site allows users to fill out a form when they’ve felt a shaker anywhere in the United States. Based on user input, a map is generated showing the perceived intensity of the earthquake by region.

Earthquakes Around the World – 2000
Worlwide earthquake locations available in ASCII and ESRI shapefile format. These files contain locations of earthquakes of magnitude 1.0 or higher for the year 2000.

HAZUS
HAZUS a PC-based GIS system developed by FEMA and National Institute of Building Sciences, is a standardized, nationally applicable earthquake loss estimation methodology.

Southern California Earthquakes
Up-to-the minute Earthquake map of the Southern California region. Maps the location of the 500 most recent earthquakes of any size in the Southern California region. Map also shows the local fault lines.

USGS Twitter Earthquake Detector
Follow USGS TED to see maps of earthquake Twitter responses as part of a USGS study on the use of social media in earthquake detection.