地震活跃期

分别取两个地震活跃期之间的时间间隔和每一活跃期内的最大地震的震级为原始数据列，用五步建模法建立灰色GM（1,1）模型。

Take account of time interval between two activity periods and the largest earthquake magnitude in each period as origin data set , we constructed two Grey GM ( 1,1 ) modcls .

据有关专家预测，我国正面临着一个新的地震活跃期。

Experts predict that China is facing a new period of seismic activity .

作者对第5个地震活跃期的特点提出了一些看法。

As the characteristics of the 5th earthquake active period , some opinions are put forward .

东北第五地震活跃期结束时间及最大地震强度预测

Estimate on ending time of 5th seismic active period of Northeast China and its maximal earthquake intensity

结果表明：水氡异常的幅度可能反映地震活跃期的强震活动水平；

The result indicates that radon abnormity range can reflect strong earthquake active level of earthquake active period ;

在地震活跃期内新疆境内强震主体活动区域分析；

The analyse of the mainly activity areas of strong earthquakes during the activity period of earthquakes in Xinjiang ;

20世纪云南4个地震活跃期人员震亡的数量占云南二十世纪震亡总量的96.7%。

In the 20th century , the number of earthquake-caused death in 4 active periods amounts to 96.7 % of the total .

认为：鲁中早寒武世末有一个地震活跃期；

It is considered that there was a seismic active period at the end of the Early Cambrian in the central Shandong area .

云南有4个地震活跃期，但安达曼弧与缅甸平原却只有3个，缺失第3活跃期。

There are 4 seismic active periods in Yunnan , but only 3 in Andaman Arc and Myanmar , lacking of the third active period .

云南地震活跃期的大震非线性加速律及对未来3年大震趋势预测

The Nonlinear Acceleration Regularity of the Large Seism During ? Seismic Active Period and the Trend Prediction of Large ? Seism for Future Three Years in Yunnan

用所建模型进行预测，得到东北地区下一个地震活跃期约于1997年开始，活跃期内可能发生的最大地震为7.2级。

The two models predicted that the next earthquake activity period of Northeast China begin at the year of 1997 , and a magnitude of 7 . 2 may be take place .

运用灰色系统理论，对东北地区下一个地震活跃期开始时间以及活跃期内可能发生的最大地震的震级进行预测。

In this paper , we attempt to forecast the beginning time and it 's largest magnitude of earthquake in following seismic activity period of Northeast China by means of grey system theory .

结果认为，东北第五地震活跃期约到2008年结束，本活跃期最大地震强度为6级左右。

The result suggests that 5th seismic active period of NE China will be over in about 2008 , and that the maximal earthquake intensity is about magnitude 6 in this active period .

70年代我国进入地震活跃期，泥石流也相当活跃。

Earthquake debris flow had been paid a lot of attention to in our country in 1970s when China entered an active phase of earthquake . Debris flow was also very active at that period of time .

在研究区域处于地震活跃期时，用线性合成概率方法研究预测未来地震趋势是一种较为有效的方法。

And that is better pertinence get along with medium and strong earthquake ; Using the linear probability method to forecast the seismic trend in the future is effective and successful when the region concerned is at the active period .

台湾海峡7.3级地震是90年代地震活跃期在我国的一个标志地震。

The Taiwan Strait earthquake with M S 7.3 was a marker one in our country for 1990s ′ seismically active period .

地震灾害预测工作在新的地震活跃期中将更加重要和紧迫。

The forecasting of seismic damage becomes more important and urgent during the activity time of the earthquake .

广西及其邻近地区（以下简称广西地区）的地震活动周期约为360年，在地震活跃期，尚存在21年左右的地震周期变化，目前广西地区的地震活动正处于地震活跃期的后期。

The cycle of seismic activity is about 360 years in Guangxi and its surrounding areas ( simply called Guangxi in this paper ) .

地震在本世纪初仍是我国大陆地震频繁发生的活跃期。

Earthquake will already occur high frequency in our country this early century .

中强地震连发平静首发大震可能是云南以东部为活动主体的地震活跃期的启动模式。

Further , in the east part of Yunnan , the three procedures including continuous occurrence of moderate-strong earthquakes , quiescent period , and the occurrence of the first strong earthquake may be the style of the beginning of the earthquake active period .