「地震前兆解析システム」による地震データ自動処理の能力
1992 年 45 巻 3 号 p. 291-304
詳細
1992 年 45 巻 3 号 p. 291-304
The ability of the automatic data processing in seismic observation was examined by comparing the results of the hypocenter and focal mechanism determinations with those by manual processing. The mean rate of the hypocenter determination is estimated to be 53% for the data observed within a circle with a 200km radius, which is regarded as the network observation area covering the Kanto and the Tokai districts. The accuracy is certainly good within that area. In the case of the automatic processing for focal mechanism determination, the rate reaches 41% and is almost 100% for earthquakes of M3 or greater. It has been noticed that the lack of reliability becomes a conspicuous problem in the results obtained by the automatic processing for the earthquakes occurring outside the network area.
