Results 21 to 30 of about 1,532 (175)

Compound electron acceleration at planetary foreshocks [PDF]

Nature Communications
Shock 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, Anton Artemyev, Vassilis Angelopoulos, Terry Liu, Lynn B. Wilson III   +4 more
doaj   +2 more sources

Foreshocks, aftershocks, and static stress triggering of the 2020 Mw 4.8 Mentone Earthquake in west Texas [PDF]

Seismica
Foreshocks 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, Nadine Igonin, Yangkang Chen, Daniel T. Trugman, Alexandros Savvaidis, Peter Hennings   +5 more
doaj   +2 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

Applied 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, Andreas Karakonstantis, Georgios Michas, Kyriaki Pavlou, Maria Kouli, Vassilis Sakkas   +5 more
doaj   +1 more source

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

Earth, 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

Using the match-and-locate method to characterize foreshocks of the July 2019 MW6.4 Ridgecrest, California earthquakeKey points

Earthquake Science, 2022
The July 2019 MW6.4 Ridgecrest, California earthquake and its distinct foreshocks were well recorded by local and regional stations, providing a great opportunity to characterize its foreshocks and investigate the nucleation mechanisms of the mainshock ...
Min Liu, Miao Zhang, Hongyi Li
doaj   +1 more source

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
doaj   +1 more source

Transmission of an ICME Sheath Into the Earth’s Magnetosheath and the Occurrence of Traveling Foreshocks [PDF]

, 2021
The transmission of a sheath region driven by an interplanetary coronal mass ejection into the Earth’s magnetosheath is studied by investigating in situ magnetic field measurements upstream and downstream of the bow shock during an ICME sheath passage on
Simon W. Good, Yordanova, Emiliya,, Turc, Lucile,, Lucile Turc, Turc, Lucile, Good, Simon W., Pulkkinen, Tuija I.,, Good, Simon W.,, Ala-Lahti, Matti, Dimmock, Andrew P., Yordanova, Emilya, University, Aalto, Dimmock, Andrew P.,, Kilpua, Emilia K. J.,, Andrew P. Dimmock, Emilya Yordanova, Ala-Lahti, Matti,, Pulkkinen, Tuija I., Kilpua, Emilia K. J., Matti Ala‐Lahti, Kilpua, Emilia K.J., Tuija I. Pulkkinen, Emilia K. J. Kilpua   +22 more
core   +1 more source

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, Marcus Herrmann, Warner Marzocchi   +2 more
doaj   +1 more source

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

, 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, Kyungjae Im, Im, Kyungjae, Jean-Philippe Avouac   +3 more
core   +1 more source

Temporal Variations of Earthquake Magnitude‐Frequency Relation in the Source Area of M ≥ 6.0 Earthquakes: A Systematic Survey in Taiwan

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, Po‐Yuan Chen, Yih‐Min Wu, Chien‐Chih Chen, Chung‐Han Chan   +4 more
doaj   +1 more source