Results 21 to 30 of about 1,496 (195)
Cluster-based foreshock discrimination model with flexible time horizon and mainshock magnitudes
Progress 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
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ARTEMIS Observations of Foreshock Transients in the Midtail Foreshock
Geophysical 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
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On the relevance of the foreshocks in forecasting seismic mainshocks [PDF]
, 2023 We analyze the usefulness of the foreshocks in forecasting seismic mainshocks. The analysis is based on possible correlations which may exist between foreshocks and mainshocks.
Apostol, Bogdan, Cune, Liviu Cristian
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New Physical Implications From Revisiting Foreshock Activity in Southern California
Geophysical 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
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Earth and Space Science, 2023 Recent studies in the earthquake magnitude‐frequency relation (b‐value) found that the b‐value can decrease with time before large earthquakes in the source area.
Sean Kuanhsiang Chen +4 more
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The Crete Isl. (Greece) Mw6.0 Earthquake of 27 September 2021: Expecting the Unexpected
GeoHazards, 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
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Dynamics of the foreshock compressional boundary and its connection to foreshock cavities [PDF]
Journal of Geophysical Research: Space Physics, 2013 AbstractWe use several global hybrid (kinetic ions, fluid electrons) simulation runs for steady and time‐varying interplanetary magnetic field (IMF) conditions to examine the dynamics of the foreshock compressional boundary (FCB) and its connection to foreshock cavities.
N. Omidi +6 more
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Vestnik 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
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Observations of a new foreshock region upstream of a foreshock bubble's shock [PDF]
Geophysical Research Letters, 2016 AbstractEarth's foreshock is a region within the solar wind upstream of Earth's bow shock filled with backstreaming solar wind particles reflected at the shock. Within this region, when the interplanetary field is approximately radial, foreshock bubbles (FBs) can be formed when the backstreaming particles interact with approaching discontinuities ...
Terry Z. Liu +3 more
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Near-seismic effects in ULF fields and seismo-acoustic emission: statistics and explanation [PDF]
Natural Hazards and Earth System Sciences, 2005 Preseismic intensification of fracturing has been investigated from occurrence analysis of seismo-acoustic pulses (SA foreshocks) and ULF magnetic pulses (ULF foreshocks) observed in Karimshino station in addition to seismic foreshocks.
O. Molchanov +10 more
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