地震活动

Seismicity trend before the earthquake was forecasted according to seismicity feature and commensurable characteristics of strong earthquake activities of Sichuan and Yunnan areas.Since Oct., 1995, a lot of kinds of the anomalies with large amplitude, such as radon and CO2 contents in groundwater and groundwater level etc.synchronized in a wide range of western Yunnan, especially along Zhongdian—Nanjian seismic area. The characteristics of these short-term anomalies are introduced and analysed.

根据川滇地区地震活动特征和可公度性计算结果，在该次地震前对地震大形势进行了预测。1995年10月以后，滇西北地区出现了大面积、大幅度、多手段的同步异常，其中以水氡、水位和CO2异常为主，沿中甸─南涧地震区分布较为集中。

Some digital records were obtained from 4 small earthquakes, precise hypocenter locations were determined from arrival times an...

利用这些小地震活动期间所得到的数字记录确定了4次小地震震源的精确位置，利用矩张量反演方法求解了这几个地震的震源机制。

The reservoir-induced seismicity is formed due to impoundment, which changes the frequency and intensity of earthquakes at the reservoir area.

水库诱发地震指在水库蓄水后，由于库水作用，改变了库区原有地震活动的频度和强度，而形成的地震。

The seismicity of intracontinental subduction zones on both sides of Tianshan active orogen displays as a wide, disperse and complicated seismic zone with moderate focal depth.

天山南北两侧陆内俯冲带的地震活动表现为相对较宽阔、分散而且复杂的中等深度的地震活动带。

Temporal distribution of M L≥2 earthquakes since 1970 in each seismic dense zone has been analyzed.

在每一密集区内分析了 1970年以来ML2以上地震的时间分布特征，并结合密集区内历史地震情况，将地震活动分为 3种类型。

Based on the analysis on seismicity and variations of some seismometry indices in Wulateqianqi region,Inner Mongolia from 1998 to July,2000, seismicity trend of the region in future is studied.

通过对 1 998～ 2 0 0 0年 7月内蒙古乌拉特前旗地区的地震活动特征及一些测震学指标变化特征的分析，研究了该地区未来地震的活动趋势。

Furthermore, a tally of the seismic activity around Mount Wrangell in the 2 days before and the 2 days after the Sumatran quake suggests less than a 1 percent chance of having six random earthquakes in the span of 10 minutes.

此外， 先后对地震活动围绕山wrangell在2天前与后2天苏门答腊地震suggests不到1 %的机会，有6个随机的地震，在短短的10分钟。

But in current engineering practice,these two concepts are confused.On the one hand,it causes no fit theory for delimiting seismic statistical zone in PSHA to be set up;on the other hand,researches about delimitation of seismic belts with purposes of seismicity zoning and studying on structural environment,mechanism of earthquake generating also paues to go abead.

现行工作中将两者不加区分地使用是不合适的，一方面造成地震统计区未形成自身的适应概率地震危险性分析方法的划分理论，另一方面也造成以地震活动特征和地震孕育发生环境、机制研究为目的的地震带划分研究的停滞不前。

By analyzing the reliability and integrity of their history earthquake records, the effective history earthquake records of every seismotectonic belt are obtained as the basic data for research.

论文首先选取青藏高原东南缘和东北缘具有类似地球动力学背景的地震构造带，在对其历史地震资料进行完整性和可靠性分析的基础上，获取了各地震构造带的有效历史地震活动资料，以此作为研究的基本数据。

In this paper,we have discussed the seismotectonic environment that located at the depth and shallow crust and seismology and geology model caused 1927 Gulang earthquake.

通过近年来对古浪8级大震的震源机制解、震区活动构造、地震活动性及深部地球物理资料的研究，进一步探讨了古浪大震孕育和发生的深、浅部地质构造环境和地震地质模型。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。