One of the principal advocates for developing an early earthquake warning system, a geologist in California, once said: "Earthquakes don't kill people; buildings kill people." In light of that statement, it is disingenuous to ask for state funds to upgrade the existing California Integrated Seismic Network without addressing falling buildings.
Since the Sylmar earthquake in 1971, the state has installed large arrays of strong-motion seismic stations to study earthquake mechanisms and characteristics. But the fact is that the shorter the distance from an active fault, the shorter the arrival time of the seismic waves, and over the last few decades, large population centers have been formed close to major onshore active faults. As such, the proposed earthquake warning system would be mostly ineffective.
As an earthquake engineer, it is my professional opinion that funding such unproven systems would be a waste of scarce funds.