CAJ | 학술논문

提出了一种地震预警信息可靠度检验方法。针对地震预警系统对信息的高度时效性及准确性要求，并结合其应用特点，从地震动记录信噪比、特征参数相容性、特征参数协调性及地震预警定位结果可靠性等4个方面对地震预警信息的综合可靠度进行探讨，并分别提出了相应的可靠度定量计算方法。利用日本 KiK-net 台网记录的444个地震事件共4737条三分向加速度记录对上述4个指标参数及综合可靠度指标参数的验证结果表明，采用本方法有助于提高地震预警信息发布的准确性和可靠性，减少“漏报”及“误报”事件的发生。
제출료일충지진예경신식가고도검험방법。침대지진예경계통대신식적고도시효성급준학성요구，병결합기응용특점，종지진동기록신조비、특정삼수상용성、특정삼수협조성급지진예경정위결과가고성등4개방면대지진예경신식적종합가고도진행탐토，병분별제출료상응적가고도정량계산방법。이용일본 KiK-net 태망기록적444개지진사건공4737조삼분향가속도기록대상술4개지표삼수급종합가고도지표삼수적험증결과표명，채용본방법유조우제고지진예경신식발포적준학성화가고성，감소“루보”급“오보”사건적발생。
The earthquake early warning system (EEWs)has highly require-ments for information’s timeliness and accuracy.In this paper,we proposed an information reliability test method for EEWs.Based on the EEWs’application features,this paper proposed four information reliability tests,which are signal to noise ratio (SNR)test,characteristic parameters (such asτc and Pd )compat-ibility test,characteristic parameters coordination test and EEW location relia-bility test.For each test,a quantitative calculation formula is defined,and then the reliability of the entire information can be calculated.4 737 three-component acceleration records of 444 seismic events from KiK-net in Japan were used in order to test and verify the applicability of our method.The results show that, by taking the reliability tests method proposed in this paper,the accuracy and reliability of the EEW information are improved,and then “missed alarms”or“false alarms”are reduced.