震源

China Geological Survey Bureau of the initial monitoring and evaluation finds that the Wenchuan earthquake in the Indian plate is subducting to the Asian plate, causing rapid uplift of the Tibetan Plateau result, the focal depth of 10 km - 20 km, duration is longer, so a huge destructive.

中国地质调查局初步监测和评价认定，汶川地震是印度板块向亚洲板块俯冲，造成青藏高原快速隆升导致地，震源深度为 10 千米— 20 千米，持续时间较长，因此破坏性巨大。

The principle of undershooting and the configurations of source and navigation system and installation o.

阐述了双船作业的方法原理，就炮船震源与导航系统的配置，以及近场检波器的安装方法作了详细说明。

The result show there weren't M6.0 earthquakes beyond 4 years and M5.0 earthquakes beyond 2 year, the earthquake calmness is distinct in medium term; the M5.0 earthquakes intensified in short term, there were foreshocks in the epicenter region, in the same time, the fixed point precursor observational datum of Xinjiang appeared obvious short anomalies; and found a few imminent earthquak...

结果认为，6.8级地震前新疆6级地震平静4年多，5级地震平静2年，中期阶段地震平静显著；短期阶段5级地震显著增强，震源区出现前震活动，同时全疆定点前兆观测资料出现较为明显的短期异常并观测到少量的临震异常。不同孕震时段的异常特征是6.8级地震中短期预测的依据，因而也是当前经验预报的基础。

The near-field inversion result on the source is very sensitive to the strike and dip parameters of the presumed fault model.

2用近震源地震波资料反演时，反演结果对所假定的反演断层的走向和倾角非常敏感。

The results indicate that the earthquake focal is north dip trust fault including some left-lateral strike slip.

结果表明，本次地震为北倾低角度稍具左移分量的逆冲破裂事件，断层面走向273°，倾角28°，震源深度15km。

In this paper,the authoruses the method of the explicit finite-element numerical simulation, which isbased on the most simple two-dimensional-finite-element modle and kinematicsource model,to study the basic characteristics of near-fault ground motion, suchas the changing tendency of the hanging-wall effect and the vertical effect as weonly change the fault dip or the depth of the top of the fault.

本文拟利用最简单的二维有限单元模型和基于有限断层假定的震源运动学模型，采用集中质量显式有限元数值模拟的方法研究近断层地震动的特征，如上盘效应和竖向效应随断层倾角以及断层的上界埋深的变化而改变的趋势。

0 Earthquakes in Jiashi strong earthquake sequence are analyzed, among which there are 8 strike slip earthquakes and 5 dip slip earthquakes.

分析了伽师强震群序列中 1 3次 5级以上地震的震源机制解资料，其中有 8个走滑型地震、5个倾滑型地震。

Among them,the Dacheng ML 3.1 earthquake on August 11,1999 occurred in Dacheng fault,the nodal plane Ⅱ in its focus mechanism solution(strike azimuth 208°,dip angle 54°,slip angle 12°)agrees with the strike of the Dacheng fault.

其中1999年8月11日河北省大城县ML 3.1地震发生在大城断裂上，震源机制解的节面Ⅱ(走向208°，倾角54°，滑动角12°)与大城断裂的走向一致。

The Jixian ML 3.1 earthquake on January 26,2000 occurred in Jixian-Bangjun fault.The nodal plane Ⅱ in its focus mechanism solution(strike azimuth 285°,dip angle 77°,slip angle 138°)agrees with the strike of the Jixian-Bangjun fault.

2000年1月26日蓟县ML 3.3地震发生在蓟县-邦均断裂上，震源机制解的节面Ⅱ(走向285°，倾角77°，滑动角138°)与蓟县-邦均断裂的走向一致。

Combining the result from source inversions, we propose that the oblique-slipping Baishuihe-Gaochuan rupture and the dip-slipping Bailu-Hanwang rupture were produced in the same time during the largest sub-event with a slip partitioning, and the mechanism of slip partitioning made the two faults ruptured with an oblique slip and a dip slip, but not all the same oblique slip.

结合震源过程反演成果的分析显示，斜滑的白水河—高川破裂段和逆冲型白鹿—汉旺破裂段可能是在汶川地震中最大的一次子事件过程以滑移分解的形式而同时破裂形成的，滑移分解作用使两条断裂以斜滑与逆冲组合的力学性质产生破裂而非相同性质的斜滑破裂。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。