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DOI | 10.1029/2020GL088404 |
The Spatio‐temporal Evolution of Granular Microslip Precursors to Laboratory Earthquakes | |
Daniel T. Trugman; Ian W. McBrearty; David C. Bolton; Robert A. Guyer; Chris Marone; Paul A. Johnson | |
2020-08-17 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Laboratory earthquake experiments provide important observational constraints for our understanding of earthquake physics. Here we leverage continuous waveform data from a network of piezoceramic sensors to study the spatial and temporal evolution of microslip activity during a shear experiment with synthetic fault gouge. We combine machine learning techniques with ray‐theoretical seismology to detect, associate, and locate tens of thousands of microslip events within the gouge layer. Microslip activity is concentrated near the center of the system, but is highly variable in space and time. While microslip activity rate increases as failure approaches, the spatio‐temporal evolution can differ substantially between stick‐slip cycles. These results illustrate that even within a single, well‐constrained laboratory experiment, the dynamics of earthquake nucleation can be highly complex. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/291166 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Daniel T. Trugman,Ian W. McBrearty,David C. Bolton,等. The Spatio‐temporal Evolution of Granular Microslip Precursors to Laboratory Earthquakes[J]. Geophysical Research Letters,2020. |
APA | Daniel T. Trugman,Ian W. McBrearty,David C. Bolton,Robert A. Guyer,Chris Marone,&Paul A. Johnson.(2020).The Spatio‐temporal Evolution of Granular Microslip Precursors to Laboratory Earthquakes.Geophysical Research Letters. |
MLA | Daniel T. Trugman,et al."The Spatio‐temporal Evolution of Granular Microslip Precursors to Laboratory Earthquakes".Geophysical Research Letters (2020). |
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