Results 61 to 70 of about 5,765 (201)

A case study of large-amplitude ULF waves in the Martian foreshock

Earth and Planetary Physics, 2020
Foreshock ultralow frequency (ULF) waves constitute a significant physical phenomenon in the plasma environment of terrestrial planets. The occurrence of these waves, associated with backstreaming particles reflected and accelerated at the bow shock ...
LiCan Shan, YaSong Ge, AiMin Du
doaj   +1 more source

A semi-analytical foreshock model for energetic storm particle events inside 1 AU [PDF]

, 2014
We have constructed a semi-analytical model of the energetic-ion foreshock of a CME-driven coronal/interplanetary shock wave responsible for the acceleration of large solar energetic particle (SEP) events.
Aran, Battarbee, Battarbee, Bell, Cranmer, Drury, Feynman, Horne, Lario, Lario, Lario, Lario, Lee, Lee, Li, Ng, Ng, Pomoell, Pomoell, Reames, Reames, Rice, Vainio, Vainio, Vainio, Verkhoglyadova, Verkhoglyadova, Verkhoglyadova, Zank   +28 more
core   +2 more sources

2025 U.S. Geological Survey National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands: Overview of Model and Hazard Results

Earthquake Spectra, Volume 42, Issue 2, May 2026.
The U.S. Geological Survey recently updated the National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). The first version of the PRVI NSHM was released in 2003, and therefore this 2025 update includes over 20 years of new geologic, geophysical, and engineering data, methods, and models.
Allison M. Shumway, Kevin R. Milner, Peter M. Powers, Morgan P. Moschetti, Jason M. Altekruse, Julie A. Herrick, Andrea L. Llenos, Kyle B. Withers, Edward H. Field, Brad T. Aagaard, Richard W. Briggs, Alexandra E. Hatem, Kirstie L. Haynie, Andrew J. Michael, Jessica A. Thompson Jobe, Kishor S. Jaiswal, Brandon S. Clayton, Nicolas Luco, Mark D. Petersen, Sanaz Rezaeian, Thomas L. Pratt, Yuehua Zeng   +21 more
wiley   +1 more source

Seismicity, Repeating Earthquakes, and Tomographic Imaging of the Blanco Transform Fault System, Northeast Pacific

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract The Blanco transform fault system (BTFS) represents an evolving transform plate boundary in the Northeast Pacific Ocean. Its seismic behavior was captured with a dense network of 54 ocean‐bottom seismometers (OBS) operated for 1 year. We created a high‐resolution earthquake catalog based on different machine‐learning onset pickers.
D. Lange, Y. Ren, I. Grevemeyer
wiley   +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

Shocklets and Short Large Amplitude Magnetic Structures (SLAMS) in the High Mach Foreshock of Venus

Geophysical Research Letters, 2023
Shocklets and short large‐amplitude magnetic structures (SLAMS) are steepened magnetic fluctuations commonly found in Earth's upstream foreshock. Here we present Venus Express observations from the 26th of February 2009 establishing their existence in ...
Glyn A. Collinson, Heli Hietala, Ferdinand Plaschke, Tomas Karlsson, Lynn B. Wilson III, Martin Archer, Markus Battarbee, Xochitl Blanco‐Cano, Cesar Bertucci, David Long, Merav Opher, Nick Sergis, Claire Gasque, Terry Liu, Savvas Raptis, Sofia Burne, Rudy Frahm, Tielong Zhang, Yoshifumi Futaana   +18 more
doaj   +1 more source

First-order thermal correction to the quadratic response tensor and rate for second harmonic plasma emission

, 2010
Three-wave interactions in plasmas are described, in the framework of kinetic theory, by the quadratic response tensor (QRT). The cold-plasma QRT is a common approximation for interactions between three fast waves.
B. Layden, D. J. Percival, Dulk G. A., Ginzburg V. L., Gorbunov L. M., Iver H. Cairns, Melrose D. B., P. A. Robinson, Sagdeev R. Z., Wild J. P., Zlotnik E. Y.   +10 more
core   +1 more source

Kinetic aspects of foreshock cavities [PDF]

Geophysical Research Letters, 2006
We have investigated the kinetic signatures within, and at the edges of, a foreshock cavity. Such cavities are believed to be formed when an isolated collection of interplanetary magnetic field lines connect to quasi‐parallel regions of the Earth's bow shock, allowing energetic ions to flow upstream and excavate a local cavity.
Steven J. Schwartz, David Sibeck, Mark Wilber, Karim Meziane, Timothy S. Horbury   +4 more
openaire   +1 more source

Fault Volume Digital Twin to Reproduce the Full Slip Spectrum, Scaling, and Statistical Laws

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Seismological and geodetic observations of fault zones reveal diverse slip dynamics, scaling, and statistical laws. Existing mechanisms explain some but not all of these behaviors. We show that incorporating an off‐fault damage zone—characterized by distributed fractures surrounding a main fault—can reproduce many key features observed in ...
M. Almakari, N. Kheirdast, C. Villafuerte, M. Y. Thomas, P. Dubernet, J. Cheng, A. Gupta, P. Romanet, S. Chaillat, H. S. Bhat   +9 more
wiley   +1 more source

Ion Behavior at Shocklets: A Case Study of MMS Observations

Geophysical Research Letters, 2022
The existence of shocklets, a kind of solitary structure, has been demonstrated in the Earth's foreshock regions for decades. Their formation and evolution are believed to be controlled by ions. However, the detailed behavior of ions at them has not been
Z.‐Y. Liu, Q.‐G. Zong, H. Zhang, J.‐T. Zhao, R. Rankin, C. J. Pollock, G. Le   +6 more
doaj   +1 more source