Sentences with phrase «of false alarms occurring»

Not exact matches

Because a quake's strength isn't clear at first rupture, emergency response managers face a choice when issuing warnings: Issue alerts early and often (left), which could provide as much as 48 seconds of warning that light shaking might occur but risk false alarms; or wait to issue alerts until the size of the quake is better known (right) but risk the warnings arriving too late — providing an 8 - second warning in this hypothetical case.

Whereas technically the potential threats detected by the system in the past were not false positives — they did accurately pick up tiny, background amounts of DNA from organisms naturally present in the environment — in effect, they were false alarms because they signaled the potential occurrence of a terrorist attack when none had occurred.