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The Geological Fingerprints of Slow Earthquakes

机译:缓慢地震的地质指纹

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摘要

The discovery of slow earthquakes 20 years ago revolutionized the understanding of how plate motions are accommodated at major tectonic boundaries. Slow earthquakes are a family of events that include slow slip events (SSE), tectonic tremor, and low frequency earthquakes (LFE). In some systems, SSEs occur together with tectonic tremor. When these events occur periodically, they are known as episodic tremor and slip, or "ETS." Compared to regular earthquakes, the slip across a fault during a slow earthquake occurs slowly, but significantly faster than plate-rate creep. Slow earthquakes are observed predominantly near the plate interface of sub-duction zones and on transform plate boundary faults. They are often associated with "transitional" regions at the edges of seismo-genic zones but occur both updip and downdip, so encompass a wide range of pressure and temperature conditions. Understanding slow earthquakes is critical to developing better constraints on regional seismic hazards and may also provide information on the physical conditions and fault-loading rates at depth.
机译:None

著录项

  • 来源
    《GSA Today》 |2020年第9期|共3页
  • 作者单位

    McGill University Dept. of Earth and Planetary Sciences Montreal Quebec Canada.;

    Rice University Dept. of Earth Environmental and Planetary Sciences Houston Texas USA.;

    University of Southern California Dept of Earth Sciences Los Angeles California USA.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水文地质学与工程地质学;
  • 关键词

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