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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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Large Earthquakes Along the Mendocino Oceanic Transform Fault Hardly Have Any Foreshocks
Geophysical Research LettersCompared to continental strike‐slip faults, oceanic transform faults (OTFs) are thought to mainly slip aseismically and host significantly more foreshocks triggered by precursory aseismic slip which enhance the mainshocks' short‐term predictability ...
Hui Liu, Min Liu, Yen Joe Tan
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A laboratory perspective on accelerating preparatory processes before earthquakes and implications for foreshock detectability [PDF]
Nature CommunicationsDynamic failure in the laboratory is commonly preceded by many foreshocks which accompany premonitory aseismic slip. Aseismic slip is also thought to govern earthquake nucleation in nature, yet, foreshocks are rare. Here, we examine how heterogeneity due
Thomas H. W. Goebel +4 more
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Insights on earthquake nucleation revealed by numerical simulation and unsupervised machine learning of laboratory-scale earthquake [PDF]
Scientific ReportsUnderstanding earthquake nucleation is vital for predicting and mitigating seismic events, saving lives, and enhancing construction practices in earthquake-prone areas.
Sheng Hua Ye +2 more
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Seismic rate variations prior to the 2010 Maule, Chile MW 8.8 giant megathrust earthquake [PDF]
Scientific Reports, 2021 The MW 8.8 Maule earthquake is the largest well-recorded megathrust earthquake reported in South America. It is known to have had very few foreshocks due to its locking degree, and a strong aftershock activity.
Benoit Derode +2 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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Compound electron acceleration at planetary foreshocks [PDF]
Nature CommunicationsShock waves, the interface of supersonic and subsonic plasma flows, are the primary region for charged particle acceleration in multiple space plasma systems, including Earth’s bow shock, which is readily accessible for in-situ measurements.
Xiaofei Shi +4 more
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Earthquake Research AdvancesEarthquakes are caused by the rapid slip along seismogenic faults. Whether large or small, there is inevitably a certain nucleation process involved before the dynamic rupture.
Zhigang Peng, Xinglin Lei
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The spatial density of foreshocks [PDF]
Geophysical Research Letters, 2011 Emily E Brodsky
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SeismicaForeshocks are the most obvious signature of the earthquake nucleation stage and could, in principle, forewarn of an impending earthquake. However, foreshocks are only sometimes observed, and we have a limited understanding of the physics that controls ...
David C. Bolton +5 more
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