Mancera said at a news conference there would be no demonstration of the system to avoid causing any unnecessary worry.

曼萨拉在新闻发布会上表示，为了避免引起任何不必要的恐慌，将不进行系统演示。

Mancera said there had been reports of people setting their smartphone ringtones to the sound of the new earthquake warning.

曼萨拉指出，报道显示，有人将手机铃声设为新版地震警报声。