地震活动性

就统计时段选取的不唯一性对地震活动性参数b值和年平均发生率ν4的影响，作了广泛的分析与研究。

The influence of non uniqueness in selecting statistical time ranges on seismicity parameters of b value and annual mean rate ν 4 of earthquake occurrence is widely analyzed and studied .

单键群（SLC）方法是分析地震活动性的一个有用的工具，根据SLC特征参量的时间滑移计算，对川滇地区的地震活动性特征和地震活动趋势进行了总结分析。

Single link Cluster ( SLC ) method is a useful tool in analyzing the seismicity . Based on time sliding calculation of SLC characteristic parameters , this paper analyzes the seismicity pattern and earthquake trend .

地震活动性新指标η、c在综合概率预报中的应用

Application of new seismicity indexes η, c to comprehensive probability forecast

地震活动性参数b值和年发生率的一种取值方法

A method to get seismic activity parameter b value and annual occurrence rate

地震活动性参数b，η，c在中短期地震预报中的综合应用

Synthetic Application of Seismicity Parameters b , η, c in Medium and Short-Term Earthquake Prediction

从而揭示了35°N地带地震活动性高的原因。

Thus , the cause of intense seismicity in 35 ° N zone is revealed .

EarthSimulator拥有5104颗处理器，速度为40teraflops（40兆次），主要用于气候与地震活动性的研究。（蒋黎黎）

It has5,104 processors and is dedicated to studies of climate and seismic activity .

这些异常和地震活动性参数b值、小震活动及其它一些前兆异常出现的时间同步，形态相似。

These anomalies synchronize and have similar shape with the b-value , activity of small earthquakes and some other precursory anomalies .

求出本世纪各年Ⅰ，Ⅱ，Ⅲ三带的地震活动性指数A（b），并对A（b）指数随时间的变化作了最大熵谱分析和周期图分析。

The maximum entropy analysis and the periodogram analysis are made for the temporal variations of the A ( b ) indexes .

地震活动性的标度Wells的算法在误差范围内的正确性。

SEISMICITY SCALE Wells are valid .

本文就采用矩法估计地震活动性参数b值的问题进行了讨论。

A statistical problem is discussed in the paper that evaluates the seismic activity parameter , b value , based on the moment method .

其它一些地震活动性参数如波速比、b值、C值等和前兆观测未发现明显的趋势异常。

No obvious tendency anomaly of some other seismicity parameters such as Vp / VS ratio , b-value , C-value and precursory observation are found .

基于SOC的活断层系与地震活动性关系的探讨

Study on the Relationship between Active Faults and Seismicity Based on the SOC Theory

华北地区GPS监测网建设、地壳水平运动与应力场及地震活动性的关系

Establishment of the GPS Monitoring Network in North China and Relationship between the Crustal Horizontal Motion and the Stress Field and Seismicity

普洱地区地震活动性低，次年发生MS≥6.0地震的可能性较小。

There is lower seismicity in Pure Menglian , so the probability for M S ≥ 6.0 earthquakes is small there .

地震活动性总体参量Rt及其在地震预测中应用的研究

Study on the integrated parameter R_t of seismic activity and its application to earthquake prediction

地震活动性参数估计的K方法及潜在震源区边界不确定性的影响

The K Method for Estimation of Earthquake Activity Parameters and the Effect of the Source Zone Boundary Uncertainty ── Discussion about Seismic Zoning Methods

Sr、He同位素指示河西走廊中西部地震活动性

The implications of strontium and helium isotopic compositions for the earthquake activity in the midwest of Hexi corridor , China

结果表明在Z.地震活动性的标度

The transketolase activity of Z. SEISMICITY SCALE

利用GPS、连续倾斜和地震活动性资料分析了伽师地区构造活动的特点和伽师强震群的动力背景。

On the basis of the data of GPS , continuous tilt and seismic activity we researched the tectonic characteristics in southern Tianshan mountain area and dynamic background of 1997 Jiashi earthquakes .

以定量描述地震活动性的A（b）值作参数，利用1971~2000年川滇地区M≥2.5地震资料进行空间扫描。

Taking the A ( b ) value for describing seismicity as parameter , we use the M ≥ 2.5 earthquakes from 1971 to 2000 in the Sichuan and Yunnan regions to do a spatial scan analysis .

本文论述了地震活动性常用预报方法的一个实用自动处理系统（SAPS）。

This paper described an automatic processing system ( SAPS ) of seismicity prediction methods .

用地震活动性参数（地震频度N、地震能量E和地震b值）的二维空间等值线计算机扫描技术，系统地追踪了1983年菏泽5.9级地震前后三项地震活动性参数的空间动态演化情况。

By computer scanning technique of two-dimensional space isogram of seismicity parameters ( seismic frequency N , seismic energy E and b-value ), we systematically traced the space dynamic evolution process of three seismicity parameters before and after the 1983 Heze M5 . 9 earthquake .

湖南地区分布式地震活动性模型在PSHA中的应用研究

Application of Distributed Seismic Modeling of Hunan Area in Seismic Hazard Assessment

设计一个摩擦时间依从的地震活动性细胞自动机模型（CA），研究产生地震累积频度-震级关系曲线中，出现拐点的地震强度分布不均匀现象的物理原因。

In this paper , a friction time dependent cellular automaton model of seismicity is designed to study the phenomena of the heterogeneity of intensity distribution of earthquakes , which is displayed by that some accumulative frequency magnitude relation curves of earthquakes have a breaking point .

本文用地震活动性参数等地震学方法和用时间域小地震地震图测量震源物理参数及介质Q值等震源参数方法，对伊通－舒兰断裂进行分段及地震危险性探讨。

In this paper , Shulan-Yitong fault is segmented and its earthquake risk is dis-cussed by seismological methods , such as parameters of earthquake activity , focus parame-ters , and Q value of medium , by means of seismic record of small earthquakes in time do-main .

系统研究了多种地震活动性方法后认为，1970年以来华北地区发生的Ms≥5.8中强震前，约83%具有3级或4级地震异常条带、孕震空区及信号震出现。

After studying different kinds of earthquake activities systematically , we have found that about 83 % of the anomalous seismic bands , seismogenic gaps and signal earthquakes with magnitudes 3 or 4 appeared at the same time before moderately strong earthquakes ( ML36 ) since 1970 in North China .

分析了潜在震源区划分范围，震级上限Mu及β值等地震活动性参数的不确定性对地震危险性分析的影响，其结果可供地震区划及工程地震等工作者参考。

Influences of uncertainties in seismicity parameters , such as confines of potential earthquake source region , upper limit of magnitude , Mu and β value , on calculated seismic risk have been analyzed . The results of this study are of value for seismic regionalization and engineering seismology .

Eyjafjallajokull火山喷发之后，位于邻区的Katla火山周围地震活动性增强，但是慢波延迟时间的结果表明地壳中并没有积累足够的应力引起下一次可能的喷发。

After Eyjafjallajokull volcanic eruptions , the seismic activity increases around the adjacent Katla volcano . But the results of shear-wave splitting indicate that Katla is not preparing for enough stress to cause the next possible immediate eruption .

合肥地区地震活动性及地震地质构造背景分析

Analysis of Seismic Activity and Seismogeological Structure Background in Hefei Area