Waveform Realtime Seismology

波形实时地震学

• 批准号: 07558171
• 负责人: KAWAKATSU Hitoshi
• 金额: $ 0.58万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07558171/
• 关键词: realtime seismology; CMT; earthquake source mechanism; moment tensor; broadband seismometer; モーメント

Utilizing data from broadband seismic networks of different scales (global, whole Japan, and Kanto region), we have developed automated near-realtime moment tensor inversion schemes for those three different scales. For the flobal scale, it is now possible to determine CMT of earthquakes larger than M - 5.4 wirhin 2 hours of their occurrence ; for the whole Japan scale, it is now possible to determine CMT of earthquakes larger than M - 5.4 within 30 minutes of their occurrence ; for the Kanto scale, it is now possible to determine CMT of earthquakes larger than M - 4.0 within 15 minutes of their occurrence. For the last scale problem, it should be possible to monitor the "earthquake activity field" in realtime.

利用不同尺度（全球，整个日本和关东地区）的宽带地震台网的数据，我们已经开发了自动化的近实时矩张量反演方案，这三个不同的尺度。对于日本地震震级，现在可以在发生2小时内确定大于5.4级地震的CMT;对于整个日本地震震级，现在可以在发生30分钟内确定大于5.4级地震的CMT;对于关东震级，现在可以在地震发生后15分钟内确定大于M - 4.0的地震的CMT。对于最后一个尺度问题，应该可以实时监测“地震活动场”。

项目成果

Hara, T., K.Kuge, and H.Kawakatsu: "Determination of the isotropic component of deep focus earthquakes by inversion of normal mode data" Geophys.J.Int.127. 515-528 (1996)

Hara, T.、K.Kuge 和 H.Kawakatsu：“通过正态模式数据反演确定深源地震的各向同性分量”Geophys.J.Int.127。

Hava et al.: "Determination of the isotropic compoment of deep focus earth quahes by inversion of normal mode data" Geophysical Journal International. 127. 515-528 (1996)

Hava 等人：“通过正态模式数据反演确定深焦点地震的各向同性成分”《国际地球物理杂志》。

Hara, Koge, and Kawakatsu: "Dtermination of the isotropic component of the 1994 Bolivia deep earthquake" Geophysical Research Ltters. 22. 2265-2268 (1995)

Hara、Koge 和 Kawakatsu：“1994 年玻利维亚深层地震各向同性成分的测定”地球物理研究杂志。

Kawakatsu: "Automated neav-vealtime CMT inversion" Gecphysical Research Letters. 22. 2569-2572 (1995)

Kawakatsu：“自动近时 CMT 反演”地球物理研究快报。

Kawakatsu: "On the observability of the isotropic component of a moment tensor" Geophysical Journal International. 126. 525-544 (1996)

川胜：“关于矩张量各向同性分量的可观测性”《国际地球物理杂志》。