Too bad Google gets the credit for the amazing https://www.shakealert.org system developed by the USGS and other public entities. Altering the user is the easy part, detecting the earthquake is the hard part.
Android also has a "detection" feature in non ShakeAlert locations. Android phones' accelerometer is used to detect earthquakes and warn other phones in the area: https://crisisresponse.google/android-alerts/
Oh but if you're truly committed you'll need to avoid Cloud computing resources, avoid Twillio, don't use any Google services, no Firebase Cloud messaging... You probably shouldn't use Android phones either...
And remember any delayed or failed messages put people's lives in danger...
Or we can just admit that Google as a whole had some impressive achievements here alongside the Earthquake team.
I thought it was fair given their oversimplification of what delivering messages at scale requires.
The point isn't that the Earthquake Detection isn't impressive. Why do we have to deny Google any credit here? Is it just because they're a big tech company?
IMO it feels like another "I could build Dropbox in a weekend" comment.
Android phones' accelerometer also detected the tremors: https://twitter.com/davey_burke/status/1585148438844694528
It's a pretty cool technical problem to solve while optimizing latency.