Earthquake alarm

a bell signal constructed to operate on the theory that a few seconds before the occurrence of an earthquake the magnet temporarily loses its power.

See also: Earthquake

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive
Most buildings in the country, including the Batasang Pambansa Complex in Quezon City which is the headquarters of the House of Representatives, lack earthquake alarm systems and violate the National Building Code, 1-Pacman Rep.
Most PH buildings including Batasan complex, lack earthquake alarm system - solon
Patricia Gutierrez, a 66-year-old English teacher, was taking a nap with her 11-month-old granddaughter, Juliet, when she heard an earthquake alarm in Mexico City.
'Children among ten feared dead' after helicopter carrying politicians inspecting damage from earthquake crashes into village; The government officials were checking damage caused by Mexico's huge 7.2 magnitude earthquake when their aircraft crashed onto some cars just a few metres from landing
"Right now that's the earthquake alarm going off, this is not a drill.
Scary footage of Mexico earthquake caught on camera
Radio and television stations will broadcast an earthquake alarm at 4pm, which will signal the start of the drill.
Drills in cities aim to raise disaster preparedness
As a volunteer I had an earthquake alarm on my wall and a go-bag - luxuries many local people didn't have, but nevertheless the risk of an earthquake was always present.
Member appeals for Nepal victims: health visitor, CPHVA member and Community Practitioner of the Year 2015 winner Cath Nixon spent two years living in Nepal as a volunteer and remembers the country with fondness
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