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
doaj +6 more sources
Short-Term Foreshocks as Key Information for Mainshock Timing and Rupture: The Mw6.8 25 October 2018 Zakynthos Earthquake, Hellenic Subduction Zone [PDF]
Sensors, 2020 Significant seismicity anomalies preceded the 25 October 2018 mainshock (Mw = 6.8), NW Hellenic Arc: a transient intermediate-term (~2 yrs) swarm and a short-term (last 6 months) cluster with typical time-size-space foreshock patterns: activity increase,
Gerassimos A. Papadopoulos +4 more
doaj +2 more sources
Seismic and Aseismic Fault Slip During the Initiation Phase of the 2017 MW = 6.9 Valparaíso Earthquake [PDF]
Geophysical Research Letters, 2021 Transient deformation associated with foreshocks activity has been observed before large earthquakes, suggesting the occurrence of a detectable preseismic slow slip during the initiation phase.
Emmanuel Caballero +5 more
doaj +2 more sources
On catching the preparatory phase of damaging earthquakes: an example from central Italy [PDF]
Scientific Reports, 2023 How, when and where large earthquakes are generated remain fundamental unsolved scientific questions. Intercepting when a fault system starts deviating from its steady behavior by monitoring the spatio-temporal evolution and dynamic source properties of ...
Matteo Picozzi +3 more
doaj +2 more sources
Foreshock properties illuminate nucleation processes of slow and fast laboratory earthquakes [PDF]
Nature Communications, 2023 Understanding the connection between seismic activity and the earthquake nucleation process is a fundamental goal in earthquake seismology with important implications for earthquake early warning systems and forecasting.
David C. Bolton +3 more
doaj +2 more sources
Characteristics of foreshock activity inferred from the JMA earthquake catalog [PDF]
Earth, Planets and Space, 2018 We investigated the foreshock activity characteristics using the Japan Meteorological Agency Unified Earthquake Catalog for the last 20 years. Using the nearest-neighbor distance approach, we systematically and objectively classified the earthquakes into
Koji Tamaribuchi +3 more
doaj +4 more sources
The Relevance of Foreshocks in Earthquake Triggering: A Statistical Study
Entropy, 2019 An increase of seismic activity is often observed before large earthquakes. Events responsible for this increase are usually named foreshock and their occurrence probably represents the most reliable precursory pattern.
Eugenio Lippiello +2 more
exaly +3 more sources
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
doaj +2 more sources
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
doaj +2 more sources
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
doaj +2 more sources