Pulse-like ground motion observed during the 6 February 2023 MW7.8 Pazarcık Earthquake (Kahramanmaraş, SE Türkiye)
August 2023
In this study, we analyzed 100 three-component strong ground motion records observed within 200 km of the causative fault of the 6 February 2023 MW7.8 Pazarcık (Kahramanmaraş) Earthquake in SE Türkiye....
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Recent advances in earthquake monitoring I: Ongoing revolution of seismic instrumentation
April 2021
Seismic networks have significantly improved in the last decade in terms of coverage density, data quality, and instrumental diversity. Moreover, revolutionary advances in ultra-dense seismic instruments,...
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Crustal thickness beneath the Tanlu fault zone and its tectonic significance based on two-layer H-κ stacking
February 2021
Tanlu fault zone (TLFZ) is the largest active fault zone in eastern China. It is characterized by complex tectonic evolution and multiple faults and marks the boundary between the North and South China...
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Comparison of the earthquake detection abilities of PhaseNet and EQTransformer with the Yangbi and Maduo earthquakes
October 2021
PhaseNet and EQTransformer are two state-of-the-art earthquake detection methods that have been increasingly applied worldwide. To evaluate the generalization ability of the two models and provide insights...
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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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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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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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Rapid source inversions of the 2023 SE Türkiye earthquakes with teleseismic and strong-motion data
August 2023
We conducted rapid inversions of rupture process for the 2023 earthquake doublet occurred in SE Türkiye, the first with a magnitude of MW7.8 and the second with a magnitude of MW7.6, using teleseismic...
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Crust and upper mantle structure of East Asia from ambient noise and earthquake surface wave tomography
April 2022
The complex tectonic background of East Asia makes it an ideal region for investigating the evolution of the continental lithosphere, for which high-resolution lithospheric structural models are essential....
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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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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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Investigation on variations of apparent stress in the region in and around the rupture volume preceding the occurrence of the 2021 Alaska MW8.2 earthquake
June 2022
On July 29, 2021, a large earthquake of MW8.2 occurred south of the Alaska Peninsula. To investigate the spatial-temporal changes of crustal stress in the earthquake-stricken area before this event,...
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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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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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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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High-precision relocation of the aftershock sequence of the January 8, 2022, MS6.9 Menyuan earthquake
April 2022
The 2022 Menyuan MS6.9 earthquake, which occurred on January 8, is the most destructive earthquake to occur near the Lenglongling (LLL) fault since the 2016 Menyuan MS6.4 earthquake. We relocated the...
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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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Simulating the strong ground motion of the 2022 MS6.8 Luding, Sichuan, China Earthquake
August 2023
Stochastic finite-fault simulations are effective for simulating ground motions and are widely used in engineering to determine the impacts of ground motion and develop relevant predictive equations....
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A reappraisal of active faults in central-east Iran (Kerman province)
April 2022
Fault lineaments are the main input data in earthquake engineering and seismology studies. This study presents a digitally-based active fault map of the Kerman region in central-east Iran which experienced...
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Seismic hazard analysis for engineering sites based on the stochastic finite-fault method
October 2022
Seismic hazard analyses are mainly performed using either deterministic or probabilistic methods. However, there are still some defects in these statistical model-based approaches for regional seismic...
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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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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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Shallow destructive earthquakes
February 2021
Depths of earthquake occurrence and large slip distribution are critical for seismic hazard assessment. Numerous examples show that earthquakes with similar magnitudes, however, can result in significantly...
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An accessible strong-motion dataset (PGA, PGV, and site vS30) of 2022 MS6.8 Luding, China Earthquake
August 2023
A MS6.8 earthquake occurred on 5th September 2022 in Luding county, Sichuan, China, at 12: 52 Beijing Time (4:52 UTC). We complied a dataset of PGA, PGV, and site vS30 of 73 accelerometers and 791 Micro-Electro-Mechanical...
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Recent advances in earthquake monitoring II: Emergence of next-generation intelligent systems
December 2021
Seismic data processing techniques, together with seismic instrumentation, determine our earthquake monitoring capability and the quality of resulting earthquake catalogs. This paper is intended to...
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