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UC Berkeley scientist: ShakeAlert can give seconds to tens of seconds of warning, seeks Bay Area partners
Summary
UC Berkeley seismologist Richard Allen briefed the San Francisco Disaster Council on ShakeAlert, a prototype earthquake early-warning system that provided seconds-to-tens-of-seconds alerts in a recent proof-of-concept and is seeking local partners such as BART and schools to pilot user tools.
Dr. Richard Allen, a professor at the UC Berkeley Seismological Laboratory, told the San Francisco Disaster Council that earthquake early warning can deliver seconds to tens of seconds of notice before damaging shaking arrives and that the technology is already in prototype use in California.
At the meeting Allen presented animation and event analyses showing how P waves can be detected and used to predict forthcoming S-wave shaking. He cited the Alum Rock event as a proof of concept: two stations closest to that epicenter detected the event and, within a second, the system issued a magnitude estimate (5.2) that matched the later evaluated magnitude (5.4). Allen said alert maps generated by the system were available before…
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