中文摘要：

文章提出了一种基于低g振动加速度传感器的地震波检测技术，并以此技术为基础，采用MMA7260QT和STC12C5410AD设计地震检测报警系统。该系统使用一片MMA7260QT对地震波中横波和纵波分别检测，根据横波与纵波传播速度与危害程度不同的原理，实现危害性地震波到来之前的提前报警，同时解决了以往地震报警系统成本高、不适合广泛普及的问题。

英文摘要：

Based on the low - g acceleration sensor, a kind of seismic wave detection technology is proposed, then an Earthquake Detection and Alarm System （EDAS） is designed with MMA7260QT and STC12C5410AD based on the technology. EDAS detects transverse waves and lengthways waves by MMA7260QT. According to the differences of speed and hazard levels of the waves, EDAS can send alarm signal before the harmful seismic waves＇ coming. EDAS are at lower cost compared to previous ones and so can he used widely.