Results 81 to 90 of about 3,946 (197)

Influence of the Eccentric Geomagnetic Dipole on Longitude Variations of Compressional Upstream Wave Amplitudes in the Topside Ionosphere: Results From the MSS‐1A Satellite

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Based on 2‐year magnetic data from the Macau science satellite, we investigate the compressional Pc3‐4 pulsations (between 16 and 100 mHz) driven by upstream waves (UWs). Our results confirm larger UWs amplitudes in the South Atlantic Anomaly (SAA) longitudes, agreeing with previous missions.
Chao Xiong, Haibin Liu, Hermann Lühr, Chunyu Xu   +3 more
wiley   +1 more source

Mainshock‐Induced Stress Changes Modulate Initial Aftershocks on Complex Branching Faults of the 2019 Ridgecrest Earthquake

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Large earthquakes can activate complex aftershock fault networks. In such systems, what controls the spatiotemporal evolution of early aftershocks remains a critical yet unresolved problem. Here, using the 2019 M 7.1 Ridgecrest earthquake as an example, we partition the first 10 days of aftershocks onto 15 branching faults activated by the ...
Yanlan Hu, Xin Cui, Zefeng Li
wiley   +1 more source

Toward Recognizing the Waveform of Foreshocks

Geophysical Research Letters
The identification of seismic precursors remains a fundamental challenge. Foreshocks are often indistinguishable from regular seismic sequences, making it difficult to determine whether they precede a larger rupture.
E. Lippiello, G. Petrillo, C. Godano, L. Dal Zilio   +3 more
doaj   +1 more source

The Evolution of Hot Flow Anomalies in Martian Space Environment

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Hot Flow Anomalies (HFAs) are transient foreshock structures generated by solar wind discontinuity‐bow shock interactions, with their evolution only confirmed near Earth. Using MAVEN and Tianwen‐1 joint observations, we study the evolution of a Martian HFA event detected on 17 September 2022 (dayside by MAVEN, nightside by Tianwen‐1).
Heying Wang, Mingyu Wu, Yangjun Chen, Qi Lv, Guoqiang Wang, Sudong Xiao, Peng E, Aimin Du, Ding Yuan, Tielong Zhang   +9 more
wiley   +1 more source

Creep rupture as a non-homogeneous Poissonian process [PDF]

, 2013
Creep rupture of heterogeneous materials occurring under constant sub-critical external loads is responsible for the collapse of engineering constructions and for natural catastrophes.
Danku, Zsuzsa, Kun, Ferenc
core   +2 more sources

What Seismic Phase is L'Aquila in Fifteen Years After the Mw6.1$$ {M}_w\kern0.3em 6.1 $$ Earthquake of April 6, 2009?

Environmetrics, Volume 37, Issue 3, April 2026.
ABSTRACT On April 6, 2009, central Italy was hit by a Mw6.1$$ {M}_w\kern0.3em 6.1 $$ earthquake that caused 308 victims in the city and province of L'Aquila; subsequently, in 2016, two Mw6+$$ {M}_w\kern0.3em 6+ $$ shocks were recorded in an area located a few dozen kilometers further north, respectively in Amatrice and Norcia.
Elisa Varini, Renata Rotondi, Alex González Fuentes   +2 more
wiley   +1 more source

The Pawnee earthquake as a result of the interplay among injection, faults and foreshocks

Scientific Reports, 2017
The Pawnee M5.8 earthquake is the largest event in Oklahoma instrument recorded history. It occurred near the edge of active seismic zones, similar to other M5+ earthquakes since 2011.
Xiaowei Chen, Nori Nakata, Colin Pennington, Jackson Haffener, Jefferson C. Chang, Xiaohui He, Zhongwen Zhan, Sidao Ni, Jacob I. Walter   +8 more
doaj   +1 more source

Earthquakes: from chemical alteration to mechanical rupture

, 1998
In the standard rebound theory of earthquakes, elastic deformation energy is progressively stored in the crust until a threshold is reached at which it is suddenly released in an earthquake.
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core   +1 more source

Statistical Study of Short Large‐Amplitude Magnetic Structures at Mars Observed by MAVEN

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract We present a statistical study of Short Large‐Amplitude Magnetic Structures (SLAMS) in the Martian foreshock using data from the Mars Atmosphere and Volatile Evolution (MAVEN) mission between 01 January 2015 and 31 December 2019. We have identified 21,008 SLAMS during this time interval and statistical results are presented on the SLAMS ...
Tsz Kiu Wong Chan, Tomas Karlsson, Sofia Bergman   +2 more
wiley   +1 more source

Machine Learning Predicts Earthquakes in the Continuum Model of a Rate‐And‐State Fault With Frictional Heterogeneities

Geophysical Research Letters
Machine learning (ML) has been used to study the predictability of laboratory earthquakes. However, the question remains whether or not this approach can be applied in a tectonic setting where one may have to rely on sparse earthquake catalogs, and where
Reiju Norisugi, Yoshihiro Kaneko, Bertrand Rouet‐Leduc   +2 more
doaj   +1 more source