Thursday, October 17, 2019 - 08:15

(TNS) — California Gov. Gavin Newsom is set to unveil the state's new earthquake early warning app, MyShake, at 11 a.m. Thursday, available on iOS and Android on the 30th anniversary of the magnitude 6.9 Loma Prieta earthquake. The announcement will be streamed live.

How much warning would MyShake have provided if an earthquake warning system were available in 1989?

Here are some estimates, according to Richard Allen, director of the Berkeley Seismology Lab:

· San Francisco's Marina District: 20 seconds

· Candlestick Point: 15 seconds

· San Jose: A few seconds

· Santa Cruz: No warning

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