Broadband ground motion simulation using a hybrid approach of the May 21, 2021 M7.4 earthquake in Maduo, Qinghai, China
June 2023
In this study, the broadband ground motions of the 2021 M7.4 Maduo earthquake were simulated to overcome the scarcity of ground motion recordings and the low resolution of macroseismic intensity map...
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Generalization of PhaseNet in Shandong and its application to the Changqing M4.1 earthquake sequence
June 2023
Waveforms of seismic events, extracted from January 2019 to December 2021 were used to construct a test dataset to investigate the generalizability of PhaseNet in the Shandong region. The results show...
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A review of the influencing factors on teleseismic traveltime tomography
June 2023
Teleseismic traveltime tomography is an important tool for investigating the crust and mantle structure of the Earth. The imaging quality of teleseismic traveltime tomography is affected by many factors,...
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A review of the wave gradiometry method for seismic imaging
June 2023
As dense seismic arrays at different scales are deployed, the techniques to make full use of array data with low computing cost become increasingly needed. The wave gradiometry method (WGM) is a new...
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Quality influencing factors of dispersion curves from short period dense arrays based on a convolutional neural network across the north section of the Xiaojiang fault area
June 2023
The number of dispersion curves increases significantly when the scale of a short-period dense array increases. Owing to a substantial increase in data volume, it is important to quickly evaluate dispersion...
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Moment magnitudes of two large Turkish earthquakes on February 6, 2023 from long-period coda
April 2023
Two large earthquakes (an earthquake doublet) occurred in south-central Turkey on February 6, 2023, causing massive damages and casualties. The magnitudes and the relative sizes of the two mainshocks...
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Machine learning-based automatic construction of earthquake catalog for reservoir areas in multiple river basins of Guizhou province, China
April 2023
Large reservoirs have the risk of reservoir induced seismicity. Accurately detecting and locating microseismic events are crucial when studying reservoir earthquakes. Automatic earthquake monitoring...
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A deep-learning-based approach for seismic surface-wave dispersion inversion (SfNet) with application to the Chinese mainland
April 2023
Surface-wave tomography is an important and widely used method for imaging the crust and upper mantle velocity structure of the Earth. In this study, we proposed a deep learning (DL) method based on...
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DiTing: A large-scale Chinese seismic benchmark dataset for artificial intelligence in seismology
April 2023
In recent years, artificial intelligence technology has exhibited great potential in seismic signal recognition, setting off a new wave of research. Vast amounts of high-quality labeled data are required...
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Benchmark on the accuracy and efficiency of several neural network based phase pickers using datasets from China Seismic Network
April 2023
Seismic phase pickers based on deep neural networks have been extensively used recently, demonstrating their advantages on both performance and efficiency. However, these pickers are trained with and...
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USTC-Pickers: a Unified Set of seismic phase pickers Transfer learned for China
April 2023
Current popular deep learning seismic phase pickers like PhaseNet and EQTransformer suffer from performance drop in China. To mitigate this problem, we build a unified set of customized seismic phase...
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Experimental study on strain field evolution around a simulated thrust fault
February 2023
Earthquakes result from continuous geodynamic processes. A topic of significant interest for the scientific community is to elaborate on the phenomena governing the faulting and fracturing of crustal...
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Constraining the crustal structure under the central and western Tian Shan based on teleseismic receiver functions and gravity anomalies
February 2023
The Tian Shan is a vast range that spans several countries in Asia. Understanding its evolutionary history may provide valuable insights into intracontinental orogenic dynamics. In this study, we explored...
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Shear wave splitting analysis of local earthquakes from dense arrays in Shimian, Sichuan
February 2023
The Shimian area of Sichuan sits at the junction of the Bayan Har block, Sichuan-Yunnan rhombic block, and Yangtze block, where several faults intersect. This region features intense tectonic activity...
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Is the September 5, 2022, Luding MS6.8 earthquake an ‘unexpected’ event?
February 2023
Whether the September 5, 2022, Luding MS6.8 earthquake is an ‘expected’ event in the context of earthquake forecast? This commentary discusses this issue mainly using the recently proposed ‘earthquake...
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A comparative study of seismic tomography models of Southwest China
February 2023
The margin of the Tibetan Plateau of Southwest China is one of the most seismically active regions of China and is the location of the China Seismic Experimental Site (CSES). Many studies have developed...
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P-wave velocity structure beneath reservoirs and surrounding areas in the lower Jinsha River
February 2023
The lower reaches of the Jinsha River are rich in hydropower resources because of the high mountains, deep valleys, and swift currents in this area. This region also features complex tectonic structures...
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Simulation of strong earthquake characteristics of a scenario earthquake (MS7.5) based on the enlightenment of 2022 MS6.9 earthquake in Menyuan
December 2022
The Menyuan area is an important transportation hub in the Hexi Corridor. The Menyuan MS6.9 earthquake that occurred on January 8, 2022 had a major impact on the local infrastructure and transportation...
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Rupture process and aftershock focal mechanisms of the 2022 M6.8 Luding earthquake in Sichuan
December 2022
According to the China Earthquake Networks Center, a strong earthquake of M6.8 occurred in Luding County, Ganzi Tibetan Autonomous Prefecture, Sichuan Province, China (102.08°E, 29.59°N), on September...
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Crustal structure beneath the central and western North China from receiver function analysis
December 2022
The North China Craton (NCC) is one of the oldest cratons on earth. Several important tectonic transformations of Mesozoic-Cenozoic tectonic regime led to the destruction of the North China craton....
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Site survey and assessment for the planned seismogeodynamic monitoring network in the Republic of Armenia
December 2022
We present results of a detailed analysis of data obtained from seismic geodynamic field studies conducted at proposed sites for the development of advanced seismic monitoring stations in the Republic...
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Ground motion prediction equations based on shallow crustal earthquakes in Georgia and the surrounding Caucasus
December 2022
Strong ground motions caused by earthquakes with magnitudes ranging from 3.5 to 6.9 and hypocentral distances of up to 300 km were recorded by local broadband stations and three-component accelerograms...
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P-wave velocity structure in the crust and the uppermost mantle of Chao Lake region of the Tan-Lu Fault inferred from teleseismic arrival time tomography
December 2022
Chao Lake is a Geoheritage site on the active Tan-Lu Fault between the Yangtze craton, the North China craton, and the Dabie orogenic belt in the southeast. This segment of the fault is not well constrained...
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