California’s tsunami alert was a mess for many. Here’s why

After a California quake, confusion threatens to increase digital distrust in times of disaster.The tsunami warning that came screaming through my cell phone at 10:51 a.m. was blunt: “You are in danger.” The warning applied to 5.3 million people in California, according to the Associated Press, although not all received it — and many who did were shocked into disbelief. …