Results 31 to 40 of about 1,236 (203)

Traveling Foreshocks and Transient Foreshock Phenomena [PDF]

open access: yesJournal 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   +3 more sources

On the Patterns and Scaling Properties of the 2021–2022 Arkalochori Earthquake Sequence (Central Crete, Greece) Based on Seismological, Geophysical and Satellite Observations

open access: yesApplied Sciences, 2022
The 27 September 2021 damaging mainshock (Mw6.0) close to Arkalochori village is the strongest earthquake that was recorded during the instrumental period of seismicity in Central Crete (Greece).
Filippos Vallianatos   +5 more
doaj   +1 more source

Characteristics of the foreshock occurrence for Mj3.0 to 7.2 shallow onshore earthquakes in Japan

open access: yesEarth, 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
doaj   +1 more source

Frequency-Magnitude Statistics of Laboratory Foreshocks Vary With Shear Velocity, Fault Slip Rate, and Shear Stress. [PDF]

open access: yesJ 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

Cluster-based foreshock discrimination model with flexible time horizon and mainshock magnitudes

open access: yesProgress in Earth and Planetary Science, 2023
Foreshock detection before mainshock occurrence is an important challenge limiting the short-term forecasts of large earthquakes. Various models for predicting mainshocks based on discrimination of foreshocks activity have been proposed, but many of them
Shunichi Nomura, Yosihiko Ogata
doaj   +1 more source

The Crete Isl. (Greece) Mw6.0 Earthquake of 27 September 2021: Expecting the Unexpected

open access: yesGeoHazards, 2022
The 27 September 2021 damaging mainshock (Mw6.0) is the first known strong earthquake that ruptured the Arkalochori area, Crete Isl., Greece, during the entire historical period, making it an unexpected event in the long-term sense.
Ioanna Triantafyllou   +4 more
doaj   +1 more source

Аппроксимация законов распределения времён ожидания форшоков на основе дробной модели деформационной активности

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
В статье рассматриваются два алгоритма построения последовательностей форшоков, связанных с главным событием заданной энергии, на основе ранее разработанной авторами статистической модели деформационного процесса.
Шереметьева, О.В.   +1 more
doaj   +1 more source

New Physical Implications From Revisiting Foreshock Activity in Southern California

open access: yesGeophysical Research Letters, 2023
Foreshock analysis promises new insights into the earthquake nucleation process and could potentially improve earthquake forecasting. Well‐performing clustering models like the Epidemic‐Type Aftershock Sequence (ETAS) model assume that foreshocks and ...
Ester Manganiello   +2 more
doaj   +1 more source

ARTEMIS Observations of Foreshock Transients in the Midtail Foreshock

open access: yesGeophysical Research Letters, 2020
AbstractForeshock transients such as hot flow anomalies (HFAs) are frequently observed in the dayside foreshock. They can disturb the local bow shock, magnetopause, and consequently the magnetosphere‐ionosphere system through dynamic pressure perturbations. Recent multipoint observations found that such perturbations can even propagate from the dayside
Terry Z. Liu   +6 more
openaire   +1 more source

Cascading foreshocks, aftershocks and earthquake swarms in a discrete fault network [PDF]

open access: yes, 2023
Earthquakes come in clusters formed of mostly aftershock sequences, swarms and occasional foreshock sequences. This clustering is thought to result either from stress transfer among faults, a process referred to as cascading, or from transient loading by
Avouac, Jean-Philippe   +3 more
core   +1 more source

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