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A comment on California's other drought: a major earthquake is overdue. Parent comment

Re:California's other drought: a major earthquake is overdue by tostitos1979 on Wednesday March 14, 2018 @06:12PM (#16588790)
I didn't know we had the tech to detect earthquakes with high prob (say >99%) something like 60 seconds in advance. Can someone comment? If we can detect, you are right that it is shocking we don't do population wide drills with messaging infrastructure.
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Re:California's other drought: a major earthquake is overdue by jcranmer on Wednesday March 14, 2018 @06:20PM (#16588848)
The tech here is P-wave detection. P-waves are somewhere around twice as fast as S-waves, so if you're 100-200km away from the hypocenter, it gives you that much advanced warning. Powerful earthquakes are still destructive at that range.
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Re:California's other drought: a major earthquake is overdue by Terribledactyl on Wednesday March 14, 2018 @06:28PM (#16588910)
The other advantage is that once the seismic wave is detected, you can transmit that info at lightspeed vs the 10s of km/h that seismic waves propagate.
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