The Alquist-Priolo law keeps new homes away from active earthquake faults. But a study finds that the resulting 'fault zone parks' attract wealthy residents despite the seismic hazard.
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.