Cell phone app. Setup something like the reverse-911 system, or even just a downloadable app that can wake your phone from sleep and use the speakers to alert its carrier that an earthquake is on the way.
How about the delay? The message is not delivered instantly. Plus, such a system would be required to be already scaled up, and stay in that state always, to support sending messages to millions of "subscribers", which would only add additional delay.
> CMAS will allow federal agencies to accept and aggregate alerts from the President of the United States, the National Weather Service (NWS) and emergency operations centers, and send the alerts to participating wireless providers who will distribute the alerts to their customers with compatible devices via Cell Broadcast, a technology similar to SMS text messages that simultaneously delivers messages to all phones using a cell tower instead of individual recipients.[3][4]
No. This would almost assuredly be sent as a level 2 extreme alert. The only alert that can bypass the settings is an alert directly from the president.
If earthquake alerts are their own category, I probably won't. However, if they're lumped in with much more common events (thunderstorm! non-custodial parent spending time with child!) that I don't care to hear, then I will.
Android does as well. (Source, worked in an Android development company, those alerts are really annoying when you are in the same room as a dozen test devices).
"It is mandatory for 3G cellular phones that were put on the market after 2007 to receive this service, though overseas manufacturers (Nokia, Apple, HTC, LG, Samsung, etc.) are not supported"
So, is it mandatory, or only for phones made in Japan?
Hell, maybe this is even a use for "Yo".