‘Frozen reservoir,’ source of a third of California’s water, is far below historical average.
For geologists, even with the advent of modern technology, there are instances when older methods are more effective; picks and shovels are sometimes the best complementary tools available for trenching studies.
A new study from our local earthquake experts has put new and clearer numbers on the risk of large earthquakes in the Bay Area's future--evidence of new progress in this slow process of enlightenment.
After the massive destruction of the 1971 Sylmar earthquake, state lawmakers passed a law to prevent new buildings from being developed on top of active earthquake faults. But that requires knowing where they are. Mapping earthquake faults is both time-consuming and costly, and the state has a long way to go.