Japan’s ‘mega-quake’ that never was, and the danger of false alarms
A software error triggering a false magnitude 9.9 quake in Japan sparks fears that eroding public trust could cost lives in a real quake
Kanako Hosomura was working in a clothing store in Yokohama when an alert on her phone warned of an imminent magnitude 9.9 earthquake.
“We all rushed outside,” Hosomura said, recalling how people poured out of nearby shops and offices to watch tall buildings and power lines for signs of shaking.
“These alarms do not go off very often – only maybe a couple of times a year – so when they do sound, everyone is worried that the quake is going to be really big,” Hosomura said.
