Comparative study on crustal earthquakes along active faults

沿活动断裂的地壳地震对比研究

• 批准号: 08041093
• 负责人: HASEGAWA Akira
• 金额: $ 2.82万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08041093/
• 关键词: intraplate earthquake; north-south seismic belt; data acquisition system; digital wave form; GPS; crustal deformation; plate tectonics; 直下型地震; 自動処理システム; ドラムレコーダ; 歪測定; コーダQ

Ningxia Hui Autonomous Region is located in the junction zone of Tibet block, North China block and Ordos block. Two GPS campaigns were operated at five newly constructed stations in 1997, which have revealed that Tibet block was moved toward northeast with a rate of about 3cm per year due to the collision between the Indian and Eurasian plates.In 1997, a PC-based data acquisition system for seismographs was installed at the Seismological Bureau of Ningxia Hui Autonomous Region, Yinchuan, China by Tohoku University, which has enabled to locate hypocenters accurately and to record digital wave form data. Preliminaly investigations of waveforms show the existence of some distinctive later phases, which are thought to be reflectors in the crust. The quality of waveform data is so high that it may be possible to be used for future researches of source process of earthquakes, seismic tomography, and so on.

Ningxia Hui自治区域位于西藏街区，中国街区和Ordos Block的联合区。 1997年，在五个新建的电台上进行了两次GPS运动，这表明，由于印度和欧亚板块之间的碰撞，西藏街区每年向东北行驶约3厘米。1997年，基于PC的数据习得系统，一个基于PC准确地定位低中心器并记录数字波形数据。对波形的前胎研究表明，存在一些独特的后期，这些阶段被认为是地壳中的反射器。波形数据的质量如此之高，以至于可以将其用于地震，地震层析成像等源过程的未来研究。

项目成果

海野.他: "1996年8月11日秋田・宮城県境付近の地震について" 東北地域災害科学研究. 33. 17-25 (1997)

海野等人：“关于 1996 年 8 月 11 日秋田县和宫城县边界附近的地震”，东北地区灾害科学研究，33. 17-25 (1997)。

Zheng Sihua: "Focal dopth of earthquakes in the Qing haixizang plateau and its tectonic implication" Earthquake Research in China. 10 1. 17-26 (1996)

郑思华：“青藏高原地震震源深度及其构造意义”，中国地震研究。

S.Zheng: "Focal depth of Earthquakes in the Qinghai-Xizog Plateau and its tectonic iruphication"Earthquate Researd in China. 10. 17-26 (1996)

郑S.：“青藏高原地震震源深度及其构造断裂”，中国地震研究。

Guillermo et al.: "Study of the State of Stress around Earthquake Swarm Areas Using P-wave Polarity Data : Nikko-Ashio and Teishi Noll Area"J. Phys. Earth. 45. 29-40 (1997)

Guillermo 等人：“使用 P 波极性数据研究地震群地区周围的应力状态：日光足尾和 Teishi Noll 地区”J。

Zheng Sihua: "Focal Depth of Earthquakes in the Qinghai-Xizang Plateau and Its Tectonic Implication"Earthquake Research in China. Vol.10, No.1. 17-26 (1996)

郑斯华：“青藏高原地震震源深度及其构造意义”中国地震研究。