There were warning sirens in advance of at least some of these tornadoes.

至少在其中一些龙卷风之前就发出了警报。

Warning sirens went off in several Israeli cities, but no casualties have been reported. Yolande Knell reports from Gaza.

以色列几个城市都响起警报，但没有报道有人员伤亡。Yolande Knell在加沙报道。

Just two hours before it hit, a warning siren went off to commemorate that event and serve as an evacuation exercise.

就在地震发生前两个小时，警报声响彻天空，既是纪念32年前的大地震，也是进行疏散演习。

Warning sirens placed around the island that are supposed to turn on in case of a disaster did not turn on.

放置在岛上的本应在发生灾难时启动的警报器没有启动。

But at 6: 00 on Tuesday morning, it was a troubling wakeup call for the Japanese who heard warning sirens broadcast and text alerts telling them to take cover.

但在星期二早上 6: 00，日本人听到了警报器广播和短信提醒， 告诉他们躲起来， 这是一个令人不安的警钟。

Questions are also mounting about the failure of many warning sirens to operate and about fire hydrants that ran dry, raising worries that more people could have been saved with a better emergency response.

关于许多警报器无法启动以及消防栓干涸的问题也越来越多， 这引发了人们的担忧，即如果采取更好的应急响应措施， 可能会拯救更多的人。