This tri-axial sensor system detects and identifies earthquake seismic patterns. The system provides an immediate signal to perform any number of lifesaving tasks or to initiate specific disaster mitigation programs for machinery and equipment. In factories or refineries, shut off valves can prevent explosions or chemical spills from pipelines or storage tanks. In nuclear and conventional power plants, a power grid can be shut down to reduce damage. In office buildings or commercial facilities, elevators and escalators can be shut down in the event of a potentially damaging earthquake, ensuring life safety and eliminating the liability caused by continued elevator operation after an earthquake has occurred.