I realized that after reading the threads, and some related articles. I don't really understand why anybody felt a need to "announce" that the early warning sy

I realized that after reading the threads, and some related articles. I don't really understand why anybody felt a need to "announce" that the early warning system, "Worked" - I would presume that it has always been the case (at least since tele-connected seismometers were invented) that there has been an early warning of every earthquake from sites that were remote to where the sensors were. Presumably this is Earthquake Monitoring/Alert systems 101. (And, in Japan they've greatly advanced the signaling to the public)