earthquake detection
Technical term for detecting seismic motion, often used in contexts like 感震器 (seismic sensor) or 感震ブレーカー (seismic circuit breaker).
The seismic sensor detected the earthquake and issued an alarm.
Installation of seismic circuit breakers is progressing in this area.
seismic breaker; earthquake-sensitive circuit breaker
Compound of 感 (feel, sense) and 震 (quake, tremor). A modern technical coinage for earthquake detection.