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Two observations: 1) The blanket warning for areas that are clearly outside inundation zones drives a lot of confusion/fear. We can vastly improve our warning
by wooten 2y ago
Two observations:
1) The blanket warning for areas that are clearly outside inundation zones drives a lot of confusion/fear. We can vastly improve our warning infra by utilizing better geo data to drive more effective alerts. For example, Tsunami inundation zone data is well known. Why not send only to phones currently in and maybe within 250m of those zones?
2) A lot of 'am I in a tsunami inundation zone?' sites were broken when I checked. them. Official government sites too. Of course that could be a function of traffic, but if so, it demonstrates a lack of resilience in their systems. We need better.
- sparky_z 2y ago>Why not send only to phones currently in and maybe within 250m of those zones? There's often significant lag between the earthquake and the arrival time. You don't just want the people in the inundation zone to know, you also want everyone else to know to stay away. That's not just a theoretical edge case. If this had been a major tsunami your system would have killed me just now. I would have been outside of your suggested range and alone at the time of the alert, but was planning to walk my dog along the water front at noon, which was just around the projected arrival time.
- wooten 2y agoah yes excellent point.