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 +3 more sources
The Relevance of Foreshocks in Earthquake Triggering: A Statistical Study [PDF]
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
doaj +3 more sources
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
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
doaj +2 more sources
Frequency-Magnitude Statistics of Laboratory Foreshocks Vary With Shear Velocity, Fault Slip Rate, and Shear Stress. [PDF]
J Geophys Res Solid Earth, 2021 Understanding the temporal evolution of foreshocks and their relation to earthquake nucleation is important for earthquake early warning systems, earthquake hazard assessment, and earthquake physics.
Bolton DC +3 more
europepmc +2 more sources
Journal of Geophysical Research: Solid EarthAbstractForeshocks are spatially clustered seismic events preceding large earthquakes. Since the dawn of seismology, their occurrence has been identified as a possible mechanism leading to further crustal destabilization, hence, to major failures. However, several cases occurred without any previous anomalous seismic activity, so that the hypothesis of
Davide Zaccagnino +4 more
semanticscholar +6 more sources
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
openaire +5 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
Pervasive Foreshock Activity Across Southern California [PDF]
Geophysical Research Letters, 2019 Foreshocks have been documented as preceding less than half of all mainshock earthquakes. These observations are difficult to reconcile with laboratory earthquake experiments and theoretical models of earthquake nucleation, which both suggest that ...
Daniel T. Trugman, Zachary E. Ross
doaj +8 more sources