"California is dead broke, so they're not going to be able to fund the system," said Mike Price, chief technology officer of Seismic Warning Systems and a sharp critic of the USGS program. "What they're building is a massive, government-centric research project. At the moment they're nowhere."
This article is hilarious! This little company builds those cheapie P-wave warning systems, so the guy is a bit self-interested, but he really lets go! A larger system tries to gather P-wave signals near the source, and then transmits the signal electronically. Supposedly giving you another few seconds, but they always screw up, since they are running Microsoft.