Results 11 to 20 of about 1,496 (195)
Earthquake Science, 2022 The July 2019 MW6.4 Ridgecrest, California earthquake and its distinct foreshocks were well recorded by local and regional stations, providing a great opportunity to characterize its foreshocks and investigate the nucleation mechanisms of the mainshock ...
Min Liu, Miao Zhang, Hongyi Li
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Research on Characteristics of Foreshocks of the Dengta M5.1 Earthquake Sequence in Liaoning [PDF]
E3S Web of Conferences, 2021 With the observed earthquake sequence data and the waveform data in the hypocenter region of the M5.1 earthquake that hit Dengta County in Liaoning on 23rd January, 2013, this study calculated the amplitude spectrum correlation coefficient before and ...
Wang Xiaoshan +3 more
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Foreshocks explained by cascades of triggered seismicity [PDF]
Journal of Geophysical Research: Solid Earth, 2003 The observation of foreshocks preceding large earthquakes and the suggestion that foreshocks have specific properties that may be used to distinguish them from other earthquakes have raised the hope that large earthquakes may be predictable. Among proposed anomalous properties are the larger proportion than normal of large versus small foreshocks, the ...
Helmstetter, Agnes, Sornette, Didier
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Some characteristics of foreshocks and aftershocks of the 2022 ML6.8 Chihshang, Taiwan, earthquake sequence [PDF]
Frontiers in Earth ScienceForeshocks and aftershocks occurred before and after the ML6.8 (Mw7.0) earthquake in eastern Taiwan on 18 September 2022. We explore the epicentral distribution and temporal variations for the mainshock, foreshocks, and aftershocks.
Kou-Cheng Chen +4 more
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Incorporating Foreshocks in an Epidemic-like Description of Seismic Occurrence in Italy
Applied Sciences, 2023 The Epidemic Type Aftershock Sequence (ETAS) model is a widely used tool for cluster analysis and forecasting, owing to its ability to accurately predict aftershock occurrences.
Giuseppe Petrillo, Eugenio Lippiello
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Toward Recognizing the Waveform of Foreshocks
Geophysical Research LettersThe identification of seismic precursors remains a fundamental challenge. Foreshocks are often indistinguishable from regular seismic sequences, making it difficult to determine whether they precede a larger rupture.
E. Lippiello +3 more
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The Pawnee earthquake as a result of the interplay among injection, faults and foreshocks [PDF]
Scientific Reports, 2017 The Pawnee M5.8 earthquake is the largest event in Oklahoma instrument recorded history. It occurred near the edge of active seismic zones, similar to other M5+ earthquakes since 2011.
Xiaowei Chen +8 more
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From foreshocks to rupture: Transient slip controls on nucleation
International audienceForeshocks are occasionally detected prior to earthquakes, but their influence on rupture nucleation is still poorly understood. Standard nucleation models generally attribute earthquake initiation to slow, quasi-static slip driven ...
Garagash, Dmitry +3 more
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Traveling Foreshocks and Transient Foreshock Phenomena [PDF]
Journal of Geophysical Research: Space Physics, 2017 AbstractWe use the multispacecraft capabilities of the Cluster and Time History of Events and Macroscale Interactions during Substorms (THEMIS) missions to show that two types of foreshock may be detected in spacecraft data. One is the global foreshock that appears upstream of the Earth's quasi‐parallel bow shock under steady or variable interplanetary
P. Kajdič +5 more
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Characteristics of the foreshock occurrence for Mj3.0 to 7.2 shallow onshore earthquakes in Japan
Earth, Planets and Space, 2022 We use the Japan Meteorological Agency (JMA) earthquake catalogue from January, 2001 to February, 2021 to investigate the spatiotemporal foreshock occurrence for shallow (within 30 km depth) onshore earthquakes (Mj3.0 to 7.2). We find clear peaks for the
Hong Peng, James Mori
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