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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Theories and applications of earthquake-induced gravity variation: Advances and perspectives
October 2023
Earthquake-induced gravity variation refers to changes in the earth’s gravity field associated with seismic activities. In recent years, development in the theories has greatly promoted seismic deformation...
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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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Advances in seismological methods for characterizing fault zone structure
April 2024
Large earthquakes frequently occur along complex fault systems. Understanding seismic rupture and long-term fault evolution requires constraining the geometric and material properties of fault zone...
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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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Fractal analysis of major faults and fractal dimension of lineaments in the Indo-Gangetic Plain on a regional scale
April 2024
The Indo-Gangetic Plain (IGP) is one of the most seismically vulnerable areas due to its proximity to the Himalayas. Geographic information system (GIS)-based seismic characterization of the IGP was...
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High-resolution seismicity imaging and early aftershock migration of the 2023 Kahramanmaraş (SE Türkiye) MW7.9 & 7.8 earthquake doublet
December 2023
We build a high-resolution early aftershock catalog for the 2023 SE Türkiye seismic sequence with PALM, a seamless workflow that sequentially performs phase picking, association, location, and matched...
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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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The coefficient of variation representing the non-uniformity of the strain field and its implication to detect earthquake precursor*
December 2020
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 before...
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The MW5.5 earthquake on August 6, 2023, in Pingyuan, Shandong, China: A rupture on a buried fault
February 2024
On August 6, 2023, a magnitude MW5.5 earthquake struck Pingyuan County, Dezhou City, Shandong Province, China. This event was significant as no large earthquakes had been recorded in the region for...
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Crustal and uppermost mantle structure of the northeastern Qinghai-Xizang Plateau from joint inversion of surface wave dispersions and receiver functions with P velocity constraints
April 2024
Lithospheric structure beneath the northeastern Qinghai-Xizang Plateau is of vital significance for studying the geodynamic processes of crustal thickening and expansion of the Qinghai-Xizang Plateau....
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Analysis of faulting destruction and water supply pipeline damage from the first mainshock of the February 6, 2023 Türkiye earthquake doublet
February 2024
In 2023, two consecutive earthquakes exceeding a magnitude of 7 occurred in Türkiye, causing severe casualties and economic losses. The damage to critical urban infrastructure and building structures,...
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Intrinsic and scattering attenuations of the Sichuan-Yunnan region in China from S coda waves
February 2024
Seismic attenuation is a fundamental property of the Earth's media. Attenuation structure for the complicated geological structures with strong seismicity in the Sichuan-Yunnan region is poorly studied....
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CREDIT-X1local: A reference dataset for machine learning seismology from ChinArray in Southwest China
April 2024
High-quality datasets are critical for the development of advanced machine-learning algorithms in seismology. Here, we present an earthquake dataset based on the ChinArray Phase I records (X1). ChinArray...
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Cascading multi-segment rupture process of the 2023 Turkish earthquake doublet on a complex fault system revealed by teleseismic P wave back projection method
April 2024
In this study, the vertical components of broadband teleseismic P wave data recorded by China Earthquake Network are used to image the rupture processes of the February 6th, 2023 Turkish earthquake...
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Introduction to China’s Earthquake Emergency Response System
October 2021
Following the MS6.4 earthquake that occurred on May 21, 2021 in Yangbi, Yunnan, China, the earthquake emergency response system (EERS) responded immediately. The real-time software delivered many seismic...
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Ambient noise tomography of a linear seismic array based on an improved Voronoi tessellation
December 2023
Ambient noise tomography, when applied to a dense linear seismic array, has the capability to provide detailed insights into the fine velocity structures across diverse tectonic settings. The linear...
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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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Seismic prompt gravity strain signals in a layered spherical Earth
October 2023
Seismic waves generated by an earthquake can produce dynamic perturbations in the Earth’s gravity field before the direct arrival of P-waves. Observations of these so-called prompt elasto-gravity signals...
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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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Investigating the reactivation of historical landslides during the 2022 Luding MS6.8 earthquake
June 2024
On September 5, 2022, a strong earthquake with a magnitude of MS6.8 struck Luding County in Sichuan Province, China, triggering thousands of landslides along the Dadu River in the northwest-southeast...
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Joint inversion of Rayleigh group and phase velocities for S-wave velocity structure of the 2021 MS6.0 Luxian earthquake source area, China
October 2023
On September 16, 2021, a MS6.0 earthquake struck Luxian County, one of the shale gas blocks in the Southeastern Sichuan Basin, China. To understand the seismogenic environment and its mechanism, we...
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A review of geophysical studies on the Mongolian Plateau
June 2024
The Mongolian Plateau in Central Asia is an intracontinental tectonic system far from active plate boundaries. Despite its distance from these boundaries, the plateau is characterized by intense crustal...
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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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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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