Congress and California State Legislature: Waiting for the Big Earthquake
April 21, 2014 | Los Angeles Times
Mexico has an early warning system that can detect earthquakes and notify people before vibrations arrive. During last week's magnitude 7.2 earthquake along Mexico's Pacific coast the system gave people in Mexico City about 60 seconds of warning before vibrations arrived. People in Acapulco had 27 seconds of warning. This gave them time to seek cover, turn off gas flames, stop surgeries, stop vehicles, protect children and more.
Mexico has been giving earthquake warnings for over 20 years and their systems have helped people avoid injury, property damage and possibly deaths. Japan has an earthquake warning system.
First Earthquake Early Warning Method in 1909 Iran
September 5, 2013 | Seismological Society of America
The Seismological Society of America has published: Early Earthquake Detection and Warning Alarm System in Iran by a Telegraph Operator: A 116-Year-Old Disaster Prevention Attempt.
Earthquake Warning System Worked
March 29, 2014 | Los Angeles Times
"A prototype earthquake early-warning system worked again Friday night, giving seismologists in Pasadena about a four-second heads-up before shaking was felt from the magnitude 5.1 quake that struck near La Habra."