Thus it appears that any variability whatsoever in background seismicity can be claimed , after the fact , to have been a precursor .
这样看来,可以将背景地震活动性中的任何变化,在地震发生之后,认为是一种前兆。
The global seismicity level in the year 2000 was slightly higher than former years , but its disaster situation was very slight .
2000年全世界地震活动水平略高于往年,但地震灾情很轻。
Xiaojiang activity fault zone has a long-standing history of formation and development , its activity had induced very frequent seismicity and various geologic hazards .
Abstract : the global seismicity level in the year 2000 was slightly higher than former years , but its disaster situation was very slight .
文摘:2000年全世界地震活动水平略高于往年,但地震灾情很轻。
Article 14 the state protects the facilities for earthquake monitoring and the environment for seismicity observation in accordance with law . No unit or individual may jeopardize such facilities or environment .
第十四条国家依法保护地震监测设施和地震观测环境,任何单位和个人不得危害地震监测设施和地震观测环境。
On the basis of the provincial characteristics of seismicity and the law of the swarm activity at xiuyan , the foreshocks characteristics of the xiuyan swarm is determined .
根据地震活动的区域特性及岫岩偏岭震群活动的规律,判定岫岩震群的前震性质。
The level of global seismicity during the first quarter of the year 1988 was somewhat lower than that of the 4th quarter of the year 1987.three large earthquakes of magnitude 7or over successively occurred in the gulf of alaska .
This paper gives a relatively comprehensive description of the situation of seismolog-ical work in australia , including the intitution of research organizations , the distribution of seismic observational networks , the instrumentation and the characteristics of seismicity in the australian continent , etc.
Variation character of earth tide of water level of artesian well and response ratio of seismicity before strong moderate earthquake .
中强地震前承压井水位固体潮和地震活动响应比的变化。
They concluded only that the weight of the reservoir 's water and diffusion of water from the reservoir below the earth 's surface " clearly affected the local seismicity " over a period of nearly four years before the fault ruptured .