Results 41 to 50 of about 5,588,444 (128)

Entropy, energy, and proximity to criticality in global earthquake populations [PDF]

, 2002
We examine the question of proximity of the global earthquake population to the critical point characterised by the energy E and entropy S based on annual frequency data from the Harvard CMT catalogue.
Main, Ian G.; id_orcid, Al-Kindy, Fahad H.   +1 more
core   +1 more source

Comparison of statistical low-frequency earthquake activity models

Earth, Planets and Space
Slow earthquakes are slow fault slip events. Quantifying and monitoring slow earthquake activity characteristics are important, because they may change before large earthquakes occur.
Tomoaki Nishikawa
doaj   +1 more source

Fluid Processes Highlighted by Temporal Variations of b‐Value During Swarms and Aftershocks Sequences in the Ubaye Region (Western Alps, France)

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract The b‐value from the Gutenberg‐Richter law is a crucial parameter in the assessment of seismic hazard. Its temporal variations may also bring useful insights on the processes driving seismicity at depth, even if not yet fully understood. In this paper, we focus on the temporal evolution of the b‐value in the Ubaye Region (French Western Alps ...
Marion Baques, Clara Duverger, Louis De Barros, Hervé Jomard, Maxime Godano   +4 more
wiley   +1 more source

Mechanics and Statistics of Postseismic Shaking

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Analysis of 2 weeks of continuous post‐seismic shaking after the 2019 M7.1 Ridgecrest, CA earthquake sequence using 4 nearby borehole seismometers reveals that continuous ground motions decay as Omori's law in time and follow the Gutenberg‐Richter distribution in logarithmic amplitude.
T. Clements, E. S. Cochran, S. E. Minson, N. J. van der Elst, C. E. Yoon, A. Baltay, M. T. Page   +6 more
wiley   +1 more source

Back to the Source: Connecting the Seismological Observations of Le Teil Earthquake (Mw 4.9, 2019/11/11, France) to the Local Geology

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.
Abstract The spatial distribution of seismicity in active fault zones depends primarily on the geometry of the fault networks. However, recent advances suggest that seismic activity may also be controlled by the rheology of the geological units surrounding fault zones. In the present work, we use seismological and geological analyses to investigate the
Maxime Godano, Christophe Larroque, Bertrand Delouis, Jean‐Paul Ampuero, Feyza Arzu, Françoise Courboulex, Anne Deschamps, Martijn van den Ende, Stéphane Baize, Jean‐François Ritz   +9 more
wiley   +1 more source

Statistical Characteristics of Seismicity Correlated With Crustal Fluids in the Noto Region

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.
Abstract Earthquake swarms and strong shocks have frequently occurred in Noto Peninsula, Japan, for decades, resulting in a seismicity pattern characterized by a mixture of background earthquakes, swarms, and foreshock/aftershock sequences. Using an improved version of the space‐time Epidemic‐Type Aftershock Sequence model, we extract statistical ...
Yicun Guo, Jiancang Zhuang, Guangyao Yin, Huai Zhang   +3 more
wiley   +1 more source

The Role of Co‐Seismic Devolatilization in Driving Aftershock Sequences in Greece

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract We investigate the role of co‐seismic devolatilization in driving aftershock sequences, focusing on three recent sequences in Greece: Thiva, Damasi, and Florina. We use a numerical model incorporating non‐linear diffusion with a source term that accounts for fluid generation via thermal decomposition of carbonates.
Gaëlle Toussaint, Benoît Valley, Thanushika Gunatilake, Stephen A. Miller   +3 more
wiley   +1 more source

Magnitude Distribution During Transformational Faulting: Implication for Deep‐Focus Earthquakes

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract Deep‐focus earthquakes occur at 300–660 km depth. Geophysical observations and deformation experiments have proposed the olivine‐spinel (wadsleyite/ringwoodite) phase transformation as the source of the mechanical instability. While geophysical observations indicate that fault geometry influences the b $b$‐values of the Gutenberg‐Richter law ...
S. Sawa, J. Gasc, N. Miyajima, A. Schubnel, M. Baïsset, J. Muto   +5 more
wiley   +1 more source

Financial markets, shocks and Omori-Utsu law

, 2018
lot of physicists and economists have contributed to studies showing analogies between physical complex systems and economic and financial markets. In this paper we have compared the complex system of earthquakes with Internet, social media and finance ...
Vincenzo Pacelli, Francesca La Manna
core   +1 more source

Raw data : Omori et al

Raw data of the paper;Tissue and cell type-specific heterogeneity of p16high cells revealed by single-cell ...
Omori, S
core   +1 more source