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ShakeAlertLA - California’s earthquake early warning system

25 years after the damaging Northridge earthquake in Southern California, Los Angeles has released an app that will warn people when a big earthquake has started.

Los Angeles is a city of Angels, and of earthquakes. Deadly earthquakes in 1933, 1971 and 1994 have also made it a pioneer in earthquake protection – for example with tough engineering standards to save buildings. Since 2013, with the help of scientists at the US Geological Survey, the city has been developing a resilience plan which culminated in the release of an app that should give residents precious seconds of warning when an earthquake starts. Roland Pease meets the scientists, the Mayor and the officials making the system work.

Picture: An apartment after the Northridge earthquake in 1994
Credit: Getty Images

Available now

27 minutes

Last on

Mon 18 Mar 2019 00:32GMT

Broadcasts

  • Mon 11 Mar 2019 20:32GMT
  • Mon 11 Mar 2019 21:32GMT
  • Tue 12 Mar 2019 05:32GMT
  • Tue 12 Mar 2019 06:32GMT
  • Tue 12 Mar 2019 07:32GMT
  • Tue 12 Mar 2019 11:32GMT
  • Tue 12 Mar 2019 15:32GMT
  • Mon 18 Mar 2019 00:32GMT

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