Machine Learning Predicts the Timing and Shear Stress Evolution of Lab Earthquakes Using Active Seismic Monitoring of Fault Zone Processes [0.03%]
基于断层带过程主动地震监测的机器学习预测实验室地震的时序和剪切应力演化
Srisharan Shreedharan,David Chas Bolton,Jacques Rivière et al.
Srisharan Shreedharan et al.
Machine learning (ML) techniques have become increasingly important in seismology and earthquake science. Lab-based studies have used acoustic emission data to predict time-to-failure and stress state, and in a few cases, the same approach ...
Assessing Margin-Wide Rupture Behaviors Along the Cascadia Megathrust With 3-D Dynamic Rupture Simulations [0.03%]
基于三维动力学破裂模拟的卡斯卡迪亚俯冲带宽断层滑移行为研究
Marlon D Ramos,Yihe Huang,Thomas Ulrich et al.
Marlon D Ramos et al.
From California to British Columbia, the Pacific Northwest coast bears an omnipresent earthquake and tsunami hazard from the Cascadia subduction zone. Multiple lines of evidence suggests that magnitude eight and greater megathrust earthquak...
Mapping Magnetic Signals of Individual Magnetite Grains to Their Internal Magnetic Configurations Using Micromagnetic Models [0.03%]
基于微磁学模型映射单个磁铁矿颗粒的磁场信号至其内部磁构配置
David Cortés-Ortuño,Karl Fabian,Lennart V de Groot
David Cortés-Ortuño
Micromagnetic tomography (MMT) is a technique that combines X-ray micro computed tomography and scanning magnetometry data to obtain information about the magnetic potential of individual grains embedded in a sample. Recovering magnetic sig...
Slab Geometry and Upper Mantle Flow Patterns in the Central Mediterranean From 3D Anisotropic P-Wave Tomography [0.03%]
基于各向异性P波三维层析成像的中央地中海地区地幔上部流动模式及地块几何学研究
F Rappisi,B P VanderBeek,M Faccenda et al.
F Rappisi et al.
We present the first three-dimensional (3D) anisotropic teleseismic P-wave tomography model of the upper mantle covering the entire Central Mediterranean. Compared to isotropic tomography, it is found that including the magnitude, azimuth, ...
Frequency-Magnitude Statistics of Laboratory Foreshocks Vary With Shear Velocity, Fault Slip Rate, and Shear Stress [0.03%]
实验室前震的频Magnitude统计特性随剪切波速、断层滑动速率和剪切应力而变化
David C Bolton,Srisharan Shreedharan,Jacques Rivière et al.
David C Bolton et al.
Understanding the temporal evolution of foreshocks and their relation to earthquake nucleation is important for earthquake early warning systems, earthquake hazard assessment, and earthquake physics. Laboratory experiments on intact rock an...
Microseismicity Appears to Outline Highly Coupled Regions on the Central Chile Megathrust [0.03%]
中智利地震活动勾画出了大型逆断层上的高耦合区域
C Sippl,M Moreno,R Benavente
C Sippl
We compiled a novel microseismicity catalog for the Central Chile megathrust (29°-35°S), comprising 8,750 earthquakes between April 2014 and December 2018. These events describe a pattern of three trenchward open half-ellipses, consisting...
Hierarchical Exploration of Continuous Seismograms With Unsupervised Learning [0.03%]
基于无监督学习的连续地震记录分层探索方法研究
René Steinmann,Léonard Seydoux,Éric Beaucé et al.
René Steinmann et al.
Continuous seismograms contain a wealth of information with a large variety of signals with different origin. Identifying these signals is a crucial step in understanding physical geological objects. We propose a strategy to identify classe...
David C Bolton,Srisharan Shreedharan,Gregory C McLaskey et al.
David C Bolton et al.
Tectonic faults fail through a spectrum of slip modes, ranging from slow aseismic creep to rapid slip during earthquakes. Understanding the seismic radiation emitted during these slip modes is key for advancing earthquake science and earthq...
The Permeability of Porous Volcanic Rock Through the Brittle-Ductile Transition [0.03%]
脆-韧转变过程中多孔火山岩的渗透性研究
Michael J Heap,Gabriel G Meyer,Corentin Noël et al.
Michael J Heap et al.
The permeability of volcanic rock controls the distribution of pore fluids and pore fluid pressure within a volcanic edifice, and is therefore considered to influence eruptive style and volcano deformation. We measured the porosity and perm...
Segmentation of Shallow Slow Slip Events at the Hikurangi Subduction Zone Explained by Along-Strike Changes in Fault Geometry and Plate Convergence Rates [0.03%]
希库朗伊俯冲带浅层缓慢地震活动的分段性可通过断层几何和板块收敛速率沿走向的变化来解释
Andrea Perez-Silva,Yoshihiro Kaneko,Martha Savage et al.
Andrea Perez-Silva et al.
Over the last two decades, geodetic and seismic observations have revealed a spectrum of slow earthquakes along the Hikurangi subduction zone in New Zealand. Of those, shallow slow slip events (SSEs) that occur at depths of less than 15 km ...