When the 7.9-magnitude San Francisco earthquake went off at 5:12 a.m. on April 18, 1906, earthquake alerts were more than 100 years in the future.
So what if that exact same earthquake — the Big One off the San Andreas Fault, epicentered in exactly the same place — happened today?
- Related:4.6 magnitude earthquake shakes California, centered in Santa Cruz Mountains
We asked a U.S. Geological Survey expert how much time people would have after their phone buzzed.
The answer is sobering…