Results 51 to 60 of about 7,837 (204)

Foreshocks of the 2016 MS5.1 Yunlong earthquake in Western Yunnan, China, and implications for earthquake nucleationKey points

Earthquake Science
Monitoring the evolution of foreshocks can be a valuable way to analyze the nucleation process. Foreshocks accompanying moderate mainshocks have been recorded in the west of Yunnan Province, China.
Gaohua Zhu, Hongfeng Yang, Yingying Zhang   +2 more
doaj   +1 more source

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, Heli Hietala, Vassilis Angelopoulos, Drew L. Turner   +3 more
openaire   +2 more sources

Good practices in PSHA: declustering, b-value estimation, foreshocks and aftershocks inclusion; a case study in Italy

, 2020
The classical procedure of the probabilistic seismic hazard analysis (PSHA) requires a Poissonian distribution of earthquakes. Seismic catalogues follow a Poisson distribution just after the application of a declustering algorithm that leaves only one ...
M. Taroni, A. Akinci
semanticscholar   +1 more source

Some characteristics of foreshocks and aftershocks of the 2022 ML6.8 Chihshang, Taiwan, earthquake sequence

Frontiers in Earth Science
Foreshocks and aftershocks occurred before and after the ML6.8 (Mw7.0) earthquake in eastern Taiwan on 18 September 2022. We explore the epicentral distribution and temporal variations for the mainshock, foreshocks, and aftershocks.
Kou-Cheng Chen, Bor-Shouh Huang, Kwang-Hee Kim, Jeen-Hwa Wang, Jeen-Hwa Wang   +4 more
doaj   +1 more source

Non-resonant Alfv\'enic instability activated by high temperature of ion beams in compensated-current astrophysical plasmas

, 2018
Context: Compensated-current systems are established in response to hot ion beams in terrestrial foreshock regions, around supernova remnants, and in other space and astrophysical plasmas.
De Keyser, Johan, Malovichko, Pavlo, Voitenko, Yuriy   +2 more
core   +1 more source

Predictability of Volcano Eruption: lessons from a basaltic effusive volcano [PDF]

, 2003
Volcano eruption forecast remains a challenging and controversial problem despite the fact that data from volcano monitoring significantly increased in quantity and quality during the last decades.This study uses pattern recognition techniques to ...
Aki, Bellanger, Buffe, Chouet, Collombet, Gelfand, Grasso, Helmstetter, Ilya Zaliapin, Jean-Robert Grasso, Kagan, Keilis-Borok, Klein, Kossobokov, Lenat, Lenat, McNutt, Minakami, Molchan, Molchan, Mulargia, Mulargia, Rubin, Sapin, Swanson, Toutain, Voight, Zaliapin   +27 more
core   +3 more sources

The Role of Disorder in Foreshock Activity

Geosciences
Foreshocks, observed before some large earthquakes, remain debated in terms of their origins and predictive value. While aftershocks fit well within bottom-up triggering models like ETAS, foreshocks may arise from distinct preparatory processes ...
Giuseppe Petrillo
doaj   +1 more source

Synchronization and desynchronization in the Olami-Feder-Christensen earthquake model and potential implications for real seismicity [PDF]

Nonlinear Processes in Geophysics, 2011
The Olami-Feder-Christensen model is probably the most studied model in the context of self-organized criticality and reproduces several statistical properties of real earthquakes.
S. Hergarten, R. Krenn
doaj   +1 more source

Planetary foreshock radio emissions [PDF]

Journal of Geophysical Research: Space Physics, 2005
The electron foreshock regions upstream of Earth's bow shock and upstream of traveling interplanetary shocks are known to be propitious sites for a variety of energetic particle and plasma wave phenomena, including radio emissions. A quantitative theoretical model has been developed for radio emissions associated with the terrestrial foreshock and for ...
Zdenka Kuncic, Iver H. Cairns
openaire   +1 more source

On the Statistical Significance of Foreshock Sequences in Southern California

Geophysical Research Letters, 2020
Earthquake foreshocks may provide information that is critical to short‐term earthquake forecasting. However, foreshocks are far from ubiquitously observed, which makes the interpretation of ongoing seismic sequences problematic.
M. P. A. van denEnde, J.‐P. Ampuero
doaj   +1 more source