Detailed interpretation of seismic stratigraphic sequences in the Laxmi Basin of the eastern Arabian Sea are presented in this study using closely spaced high resolution multi-channel seismic(MCS) dat
使用P/S谱比法重点对响水爆炸中信噪比较高的几个台站记录进行了处理分析。选取2013年1月19日发生在距其7 km左右的一次天然地震事件作为对比。得出频率在2—15 Hz范围内,90%以上的台站,爆炸P/S谱比大于1,天然地震这一值小于1,而在4—15 Hz范围内,这一结果达到了100%。为了进一步验证此方法判断爆炸与天然地震的可行性,本文又对2015年天津港爆炸事件进行计算,得到了相同的结果。此
By using a broadband Lg attenuation model developed for the Tibetan Plateau, we isolate source terms by removing attenuation and site effects from the observed Lg-wave displacement spectra of the M 7.
Rotational components play an important role in natural earthquake research, engineering seismic investigation, building monitoring, seismic exploration and other fields. Traditional researches mainly
To investigate the tidal effects on intracontinental earthquake initiation in the Tibetan Plateau and its surrounding areas, we selected over 1,500 focal mechanism solutions of inland earthquakes(epic
Ambient noise tomography(ANT) has been widely used to image crust and upmost mantle structures. ANT assumes that sources of ambient noise are diffuse and evenly distributed in space and the energy of
Before the major earthquake or rock damage occurs, it is often accompanied by a sudden change in the degree of non-uniformity of the strain field. In order to find a stronger non-uniformity signal bef
Template matching is a useful method to detect seismic events through waveform similarity between two signals. The traditional template matching method works well in detecting small tectonic earthquak
The Binchuan region is located in a seismically active area in northwestern Yunnan, China. The detailed crustal structure is important to understand the tectonic evolution and to assess the seismic ha
Based on the modern earthquake catalogue, the incomplete centroidal voronoi tessellation(ICVT)method was used in this study to estimate the seismic hazard in Sichuan-Yunnan region of China. We calcula