When the alarm which is called with P wave initial motion of release mannered null earthquake

摘要

PROBLEM TO BE SOLVED: To provide an alarm release method by verification of early earthquake specification estimating information for preventing unnecessary confusion from being brought about by verifying an alarm sent out at the initial shock of P wave, at the arrival of S wave, and calling off the alarm in the case of an unnecessary alarm.;SOLUTION: In the alarm release method by verification of early earthquake specification estimating information, the alarm sent out at the initial shock of P wave of an earthquake is verified at the arrival of S wave of the earthquake, and the alarm is called off when the alarm is unnecessary.;COPYRIGHT: (C)2009,JPO&INPIT