小地震

太原盆地小地震时间序列A（b）-N法之研究

Analysis of A ( b ) - N Method for the Small Earthquake Time Sequence in Taiyuan Basin

应用P波初动半周期和地震震级资料测定环境应力值的方法，利用广西台网30多年地震观测记录资料，测算了广西及其邻区大量中、小地震震源处的相对剪切应力强度值。

Based on the earthquake record data of Guangxi seismic network in more than 30 years , the ambient shear stress values around many middle and small earthquake sources in Guangxi and adjacent rigions are determined by using the method of half period in P wave first impulse and magnitude .

远处发生大地震总比在附近发生小地震好。

A big earthquake a long way off is preferable to a smaller one nearby

山西临汾太原大同盆地小地震活动A（b）-N法时序特征对比研究

Comparison of Characteristics of Time Sequence of Small Earthquakes in Linfen Basin , Taiyuan Basin and Datong Basin , Shanxi , by Using the A ( b ) - N Method

本文采用P、S最大振幅比资料测定中、小地震震源机制参数的方法，测定了澜沧&耿马地震前后震区182个中、小震的震源机制参数。

The source mechanism parameters of 182 moderate and small events in the seismic area before and after Lancang-Gengma Earthquake have been determined by the method of P and S maximum amplitude ratio .

小地震在此常发生，因此人们对它们并不感到很害怕。v.投掷

Small earthquakes are so common here that people don 't feel much alarm at them .

经系统地查阅台网和周围其他台站1990&2002年的全部记录，读取垂直向的P、S最大振幅数据，反演计算得到620个小地震的震源机制解。

We examined all the records in the network and its peripherial stations from 1990 to 2002 , measured the maximum amplitudes of , and made an inverse calculation of the focal mechanism solutions of 620 small events .

太原及临汾地区小地震的平均断错F′和应力降Δσ均低于海城大震前小地震的相应数值。

The average offset F ' and stress drop Δσ of small earthquakes in the Taiyuan-Linfen region are smaller than corresponding values for small events occurred before the great Haicheng earthquake .

由P波初动半周期和初动振幅测定了唐山地震余震区小地震的震源参数和介质的品质因数Q。

The source parameters of aftershocks and the Q values of the crustal medium under the Tangshan aftershock area are estimated from respectively the half cycles and amplitudes of the first P arrivals of Tangshan aftershocks .

本文采用地震学P波初动资料求解小地震综合断层面解方法，使用115个地震台的4000余个小地震初动资料，测定了华北地区近年小震应力场。

Based on the first motion data of more than 4000 small earthquakes from 115 seismic station , the stress fields of small earthquakes in the North China were determined by the method by which compositive fault plane solution is solved from first motion data of p wave .

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 .

中、小地震前水化学异常的分析

An analysis of hydrochemistry anomaly prior to moderate and small earthquakes

这种方法用预测小地震的震级和发生时间

Starting with the measurements and timing of the smaller quakes ,

蒋先生断言，蛇已经预报了很多的小地震。

Jiang claims the snakes have already predicted numerous small tremors .

沂沭断裂带小地震空间分布特征

Characteristics of spatial distribution of small earthquakes along the xinyi-lingshu fault zone

一个研究小地震机制的方法

A method for studying the mechanism of minor earthquakes

可以通过先发生的小地震得出

in the smaller quakes that preceded them .

因此，小地震在强震序列中也做出不可忽略的贡献。

A contribution made by a host of small earthquakes can not be ignored .

大地震远程触发小地震的首次证据

Earthquake yields first real evidence of remote triggering

因此研究小地震的机制非常必要。

Therefore , the study of the mechanism of minor earthquakes is quite neccessary .

通过将小地震的震级大小和爆发时间联系在一起形成地震链

chains of small earthquakes linked by their size and the time they strike .

这里小地震是常见的事，人们并不为此而大惊小怪。

Small earthquakes are so common here that people never make a fuss about it .

但真的如媒体所说，球迷的欢呼雀跃导致了一场小地震吗？

But did their jubilant stomping really cause an earthquake as some media have reported ?

滇西地区小地震群特征

Small earthquake group character in West Yunnan

由单台小地震资料所得两个区域的应力场

Stress field obtained for two regions from weak earthquake data recorded at a single seismic station

我们对临汾无线传输地震台网记录的1987～1999年期间发生的1670次中、小地震重新进行了震源定位。

We relocated 1670 small earthquakes from 1987 to 1999 recorded by Linfen wireless seismic network .

这个地方小地震很常见，大家对地震都不感到惊慌。

Small earthquakes are so common here that people don 't feel very alarmed at them .

1981年邢台5.8级强余震前后小地震的应力降估计

The estimation of stress drops of small earthquakes before and after Xingtai 5.8 earthquake of nov.9,1981

小地震震源参数；

Source parameter of small earthquakes ;

这些方法得到的结果主要反映了大量小地震的活动特征。

The results obtained by these methods mainly reflect the seismic behavior of numerous small earthquakes .