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地震学报（英文版）
中国地震学会
地震学报（英文版）

中国地震学会

陈运泰

双月刊

1000-9116

dzxb@ns.cdsn.org.cn

010-68473364

100081

北京民族学院南路5号（北京8116信箱）

地震学报（英文版）/Journal Earthquake ScienceCSCD
查看更多>>A Brief Introduction to ACTA SEISMOLOGICA SINICA(The Bulletin of the Seismological Society of China)Acta Seismologica Sinica is a comprehensive publication on seismology by the Seismological Society of China. Its Honorary Editor-in-Chief is Professor and Member of the Chinese Academy of Sciences Xin Ling QIN, Editor-in-Chief is Professor and Member of the CAS Yun Tai CHEN. The first issue of Chinese edition of the ASS was published in 1979, and that of the English edition in 1988. From 1994 both the English and Chinese editions started to publish not only one-to-one correspondence but also distributed to domestic and abroad simultaneously. From 1997, the publication period was changed from four to six issues per year. The two editions of ASS have been brought into Wanfang Digitized Journal Group and China Academy Journal Compact Disk (CAJ-CD) and China Journal Network (CJN). It is intended for those scientists and engineers, teachers and students in universities and colleges, engaged in seismology and geophysics in China and abroad. The main topics published are as follows: (1) Results of scientific and technical research in seismology as well as papers regarding geophysics, tectonics and engineering related to earthquake studies; (2) Articles presenting differences of scientific point of view in the field of seismology; (3) The present status and significant advances on research related to seismology; (4) Comments and discussions concerning seismology; (5) The recent trend of science and technology in seismology. ASS is a very important core journal in seismology and geophysics in China.In 1992, ASS won the First Class Prize which awarded by the State Seismological Bureau of China in May, First Class Prize by the Chinese Association of Science and Technology in September, First Class Prize by Beijing Editorial Society in December, and First Class Prize by the Department of Propaganda of Central committee of Chinese Communist Party, State Science and Technology Commission of China and the Office of Press and Publication of China in December. In 1996, ASS won again the First Class Prize which awarded by the China Seismological Bureau, Second class prize by the State Science and Technology Commission of China, and Second Class Prize in the whole nation compare and assessment of journal. In 1999, ASS won the “Nomination Prize” of China journal. In 2001, ASS was selected to the Chinese Journal Square Matrix, and won the “Double Prize Journal” of China. So far, Acta Seismologica Sinica has been included by the following important searching system, database and relating literature: 1)Engineering Index(EI)2)Реферативны Журнел （РЖ）3)Science Abstracts (SA)4)Current Bibliography of Science and Technology, Japan (CBSTJ)5)Bibliography and Index of Geology (GeoRef)6)Elsevier Science, Geo Abstracts2002-04-18
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    Co and postseismic fault slip models of the 2022 MW6.7 Menyuan earthquake reveal conjugated faulting tectonics at the central section of the Lenglongling fault

    Zilong HeWenbin XuZhiwei LiLei Xie...
    277-303页
    查看更多>>摘要：The 2022 MW6.7 Menyuan earthquake ruptured the western end of the Tianzhu seismic gap,providing an opportunity to study the regional seismogenic characteristics and seismic hazards. Here we use interferometric synthetic aperture radar (InSAR) and seismic data to study the mainshock rupture,early afterslip and the second largest aftershock of the 2022 Menyuan earthquake sequences. Our modeling results show that the mainshock ruptured the Lenglongling fault and the Tuolaishan fault with a maximum slip of～3 m. Rapid postseismic transient deformation occurred at the center of the Lenglongling fault. Our afterslip modeling reveals that the majority of afterslip occurred in the deeper part of the Lenglongling fault. A high-angle conjugated faulting event is found at the middle section of the Lenglongling fault. We use the stress inversion to investigate the possible triggering mechanism of the conjugated rupture event. The results indicate the maximum principal stress direction is in～222°,forming a～22° angle between the conjugated fault of second largest aftershock and the mainshock. The calculated normal stress changes indicate the region is within a pull-apart stress field,which favors such a conjugated rupturing event. Our study will help understand the rupture behavior of such kind of conjugated fault in other regions.
      原文链接:
    • 万方数据

    Source parameters and aftershock pattern of the October 7,2021,M5.9 Harnai earthquake,Pakistan

    Mohammad TahirZeeshan AhmadSadia SabahatMuhammad Naveed Mushtaq...
    304-323页
    查看更多>>摘要：On October 7,2021,a magnitude 5.9 earthquake struck the Harnai (Baluchistan) region of Pakistan,causing several fatalities and injuries within the epicentral area. First-order tectonic deformation in this region is caused by the convergence of the Indian Plate with respect to the Eurasian Plate. The Katwaz Block hinders the motion of the Indian Plate,resulting in the formation of strike-slip faults. In this study,the P-wave first-motion polarity technique was used to determine the mainshock faulting style. Cyclic scanning of the polarity solutions was applied to determine the most suitable focal mechanism solution among the available solutions generated by the FOCMEC (focal mechanism) software. The nodal planes correspond to different faulting styles (i.e.,thrust and strike-slip faulting). A nodal plane oriented in the NW-SE direction corresponded to a strike-slip mechanism,which was considered to be the fault plane. Tectonically,this earthquake was associated with the Harnai-Karahi strike-slip fault zone owing to the fault strike and direction of slip. The apparent stress drop,fault length,and moment magnitude of the Harnai earthquake were 35.4 bar,6.1 km,and 5.9,respectively. A lower b-value for the Gutenberg-Richter law was observed prior to the earthquake. Higher α-than b-values (α>b) indicate that this earthquake was governed by large events as opposed to small-magnitude events. The Harnai sequence had a decay exponent close to unity,lasted for 145 days,and produced few aftershocks. The study will help the future hazard mitigation in the region.
      原文链接:
    • 万方数据
    • 维普

    Seismicity patterns before the 2021 Fin (Iran) doublet earthquakes using the region-time-length and time-to-failure methods

    Salma OmmiVladimir Borisovich Smirnov
    324-336页
    查看更多>>摘要：Knowledge regarding earthquake hazards and seismicity is crucial for crisis management,and the occurrence of foreshocks,seismic activity patterns,and spatiotemporal variations in seismic activity have been studied. Furthermore,the estimation of the region-time-length (RTL) parameter has been proposed to detect seismic quiescence before the occurrence of a large earthquake. In addition,the time-to-failure method has been used to estimate the time occurrence of large earthquakes. Hence,in this study,to gain deeper insight into seismic activity in the southern Zagros region,we utilized the RTL algorithm to identify the quiescence and activation phases leading to the Fin doublet earthquakes. Temporal variations in the RTL parameter showed two significant anomalies. One corresponded to the occurrence time of the first earthquake (2017-12-12);the other anomaly was associated with the occurrence time of the second event (2021-11-14). Based on a negative value of the RTL parameter observed in the vicinity of the Fin epicenters (2021),seismic quiescence (a decrease in seismicity compared to the preceding background rate) was identified. The spatial distribution of the RTL prognostic parameters confirms the appearance of seismic quiescence surrounding the epicenter of the Fin doublet earthquakes (2021). The time-to-failure method was designed using precursoryq events that describe the acceleration of the seismic energy release before the mainshock. Using the time-to-failure method forthe earthquake catalog,it was possible to estimate both the magnitude and time of failure of the Fin doublet. Hence,the time-to-failure technique can be a useful supplementary method to the RTL algorithm for determining the characteristics of impending earthquakes.
      原文链接:
    • 万方数据
    • 维普

    Shear wave velocity model using HVSR inversion beneath Bandar Lampung City

    Ahmad ZaenudinAlhada FarduwinGede I Boy DarmawanKaryanto...
    337-351页
    查看更多>>摘要：The horizontal-to-vertical spectral ratio (HVSR) method has been used to characterize site-effect parameters that are indispensable in seismic hazard and risk-reduction studies in urban areas and rapid land-use planning. This method is widely used because it is the cheapest and simplest geophysical method for the acquisition and processing stages. In subsequent developments,the HVSR method has been widely used to determine elastic rock parameters,particularly shear wave velocity (vS),through the HVSR curve inversion process. Furthermore,the vS structural model can be used to delineate the presence of complex geological structures,particularly faults and sedimentary basins. Bandar Lampung is a city in Lampung Province with many fault structures and groundwater basins to the south. There are 83 HVSR measurement points around Bandar Lampung for delineating the presence of fault structures and groundwater basins. We produced the HVSR curve from the measurement results and then performed an inversion process using the particle swarm optimization algorithm to obtain vS for the depth profile. Subsequently,from this profile,we produced a two-dimensional (2D) lateral and vertical model. The mean vS value was calculated from all the measurement points,and we found stiff soil layers reaching depths of approximately 5 m,with a value of vS<330 m/s. A bedrock layer with a velocity exceeding 1250 m/s was visible at a depth of 100 m. Based on the 2D model,the vS structure shows that the city of Bandar Lampung is divided into two zones,with a NW-SE boundary. The north-middle-eastern part of the city consists of harder rocks. This harder rock is characterized by extremely high vS values,starting from a depth of 50 m. In contrast,the south-middle-west exhibits a low-moderate vS anomaly associated with groundwater basins SW of the city. From the 2D vS structural model,fault structures can be found along the city,characterized by a contrast of vS valuesfrom low to medium and from medium to high.
      原文链接:
    • 万方数据
    • 维普

    ChatGPT in transforming communication in seismic engineering:Case studies,implications,key challenges and future directions

    Partha Pratim Ray
    352-367页
    查看更多>>摘要：Seismic engineering,a critical field with significant societal implications,often presents communication challenges due to the complexity of its concepts. This paper explores the role of Artificial Intelligence (AI),specifically OpenAI's ChatGPT,in bridging these communication gaps. The study delves into how AI can simplify intricate seismic engineering terminologies and concepts,fostering enhanced understanding among students,professionals,and policymakers. It also presents several intuitive case studies to demonstrate the practical application of ChatGPT in seismic engineering. Further,the study contemplates the potential implications of AI,highlighting its potential to transform decision-making processes,augment education,and increase public engagement. While acknowledging the promising future of AI in seismic engineering,the study also considers the inherent challenges and limitations,including data privacy and potential oversimplification of content. It advocates for the collaborative efforts of AI researchers and seismic experts in overcoming these obstacles and enhancing the utility of AI in the field. This exploration provides an insightful perspective on the future of seismic engineering,which could be closely intertwined with the evolution of AI.
      原文链接:
    • 万方数据

    The forecasting efficiency under different selected regions by Pattern Informatics Method and seismic potential estimation in the North-South Seismic Zone

    Weixi TianYongxian Zhang
    368-382页
    查看更多>>摘要：In 2022,four earthquakes with MS≥6.0 including the Menyuan MS6.9 and Luding MS6.8 earthquakes occurred in the North-South Seismic Zone (NSSZ),which demonstrated high and strong seismicity. Pattern Informatics (PI) method,as an effective long and medium term earthquake forecasting method,has been applied to the strong earthquake forecasting in Chinese mainland and results have shown the positive performance. The earthquake catalog with magnitude above MS3.0 since 1970 provided by China Earthquake Networks Center was employed in this study and the Receiver Operating Characteristic (ROC) method was applied to test the forecasting efficiency of the PI method in each selected region related to the North-South Seismic Zone systematically. Based on this,we selected the area with the best ROC testing result and analyzed the evolution process of the PI hotspot map reflecting the small seismic activity pattern prior to the Menyuan MS6.9 and Luding MS6.8 earthquakes. A"forward" forecast for the area was carried out to assess seismic risk. The study shows the following. 1) PI forecasting has higher forecasting efficiency in the selected study region where the difference of seismicity in any place of the region is smaller. 2) In areas with smaller differences of seismicity,the activity pattern of small earthquakes prior to the Menyuan MS6.9 and Luding MS6.8 earthquakes can be obtained by analyzing the spatio-temporal evolution process of the PI hotspot map. 3) Thehotspot evolution in and around the southern Tazang fault in the study area is similar to that prior to the strong earthquakes,which suggests the possible seismic hazard in the future. This study could provide some ideas to the seismic hazard assessment in other regions with high seismicity,such as Japan,California,Turkey,and Indonesia.
      原文链接:
    • 万方数据
    • 维普

    Overview of the virtual special issue on the 2023 Kahramanmara?,Türkiye earthquake doublet

    Han YueHongfeng YangXiaodong Song
    383-385页
      原文链接:
    • 万方数据
    • 维普