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Earthquake alarms are devices that detect seismic activity and set off an alarm or call emergency services when an earthquake occurs. They employ a combination of sensors to detect changes in the ground structure that indicate the start of an earthquake and then use a variety of mechanisms to alertRead more
Earthquake alarms are devices that detect seismic activity and set off an alarm or call emergency services when an earthquake occurs. They employ a combination of sensors to detect changes in the ground structure that indicate the start of an earthquake and then use a variety of mechanisms to alert people to impending danger.
These may include a siren, light, and text or voice message. Earthquake alarms are usually installed in areas known to be prone to earthquakes, such as schools, hospitals, and other public buildings.
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