The USGS Earthquake Notification Service (ENS): Customizable Notifications of Earthquakes around the Globe
Lisa A. Wald, David Jay Wald, S. Schwarz, B.W. Presgrave, Paul S. Earle, E. Martinez, David H. Oppenheimer · Seismological Research Letters · 2008
At the beginning of 2006, the U.S. Geological Survey (USGS) Earthquake Hazards Program (EHP) introduced a new auto-mated Earthquake Notification Service (ENS) to take the place of the National Earthquake Information Center (NEIC)