Results 41 to 50 of about 845 (148)

Multi‐Scale Growth of an Mw 7.0 Earthquake via Hierarchical Cascading Rupture From an Mw 3.8 Repeating Event

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract To understand what governs earthquake size, we investigated the 2021 Mw 7.0 Japan Trench earthquake, which began near a nest of repeating earthquakes. High‐precision hypocenter relocation and P‐waveform correlation show that the mainshock initiated nearly identically to Mw 3.8 repeaters.
Keisuke Yoshida, Satoshi Ide, Yihe Huang
wiley   +1 more source

Shallow Poroelastic Hydrothermal Deformation at Changbaishan Volcano Before the 2020 Unrest Revealed by Sentinel‐1 InSAR Time Series

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Ground deformation of dormant volcanoes provides critical insights into subsurface processes and potential hazards. Here we present Sentinel‐1 Interferometric Synthetic Aperture Radar (InSAR) time series (2015–2020) for Changbaishan volcano, the largest intraplate volcanic system in East Asia. We detect persistent subsidence of up to 3.5 mm/yr
Xingjun Luo, Wenbin Xu, Nicolas Oestreicher, Joël Ruch   +3 more
wiley   +1 more source

Dense magnetotelluric imaging of the Akan Caldera (Hokkaido, Japan): insights into its magma plumbing system and caldera-forming reservoir

Earth, Planets and Space
To investigate the magma plumbing system beneath the Akan Caldera (Hokkaido, Japan), we conducted broadband magnetotelluric surveys and imaged its three-dimensional resistivity structure to a depth of approximately 30 km.
Tomohiro Inoue, Takeshi Hashimoto, Koki Aizawa, Hiroshi Ichihara, Ryo Tanaka, Yusuke Yamaya   +5 more
doaj   +1 more source

Fieldwork in Krasheninnikov Bay and the Karpinsky Ridge (Paramushir Island, Northern Kuril Islands) in 2025 [PDF]

Геосистемы переходных зон
This paper presents a description of the fieldwork conducted in Krasheninnikov Bay on Paramushir Island in July–August 2025 by researchers from the Institute of Volcanology and Seismology, Far Eastern Branch of the Russian Academy of Sciences.
Samarkina, Nastasia K., Ermolinskiy, Andrey B., Zvereva, Maria L., Butris, Veronika, Nuzhdaev, Anton A., Grigorieva, Sofia B., Kuznetsov, Ruslan A., Titov, Yuriy A.   +7 more
doaj   +1 more source

Instrumental Artefacts Can Reverse Apparent Lightning–Climate Trends

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Lightning is an Essential Climate Variable, yet long‐term detection records may be compromised by changes in detection technology. Using more than three decades of Austrian lightning observations (1992–2024), we show that instrumental artefacts can reverse the apparent sign of lightning–climate trends.
Hannes Wieser, Wolfgang Schulz, Georg J. Mayr   +2 more
wiley   +1 more source

Tracing Mantle Upwellings Beneath Changbaishan/Mount Paektu: New Insights From Transition Zone Discontinuity Structure

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Intraplate volcanism in Northeast Asia, located in a distant back‐arc setting, challenges conventional models of mantle convection and volatile cycling. Using receiver function data from over 300 broadband stations, we image the mantle transition zone (MTZ) beneath the Changbaishan/Paektu volcano.
Cunrui Han, Weiqian Yu, James O. S. Hammond, David P. Dobson, He Tan, You Tian, Wei Wei   +6 more
wiley   +1 more source

PROLOGUE

Annals of Geophysics, 2016
In 1989 the first bases of what is now a strong and consolidated Spanish-Italian scientific relationship in Seismology and in Volcano-Seismology were established.
José Morales, Giuseppe Puglisi
doaj   +1 more source

The Aurora Vent Field at the Transition From Magmatic Accretion to Tectonic Extension on Gakkel Ridge: Constraints From Microseismicity and Aeromagnetic Observations

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The Aurora hydrothermal vent field (AVF) is the first confirmed active vent system on the Arctic Ocean seafloor, located at the western end of the ultraslow spreading Gakkel Ridge. It marks a distinctive endmember among ridge‐axis hydrothermal systems, where volcanic construction and ultramafic influence co‐exist.
Matthias Pilot, Mechita C. Schmidt‐Aursch, Graeme Eagles, Vera Schlindwein   +3 more
wiley   +1 more source

Citizen Seismology Without Seismologists? Lessons Learned From Mayotte Leading to Improved Collaboration

Frontiers in Communication, 2020
Starting the 10th May 2018, a series of earthquakes has hit Mayotte, a French island in the Indian Ocean. Facing a lack of seismic data, scientific information and communication from the authorities, the inhabitants took advantage of social media to ...
Laure Fallou, Rémy Bossu, Rémy Bossu, Matthieu Landès, Julien Roch, Frédéric Roussel, Robert Steed, Sylvain Julien-Laferrière   +7 more
doaj   +1 more source

Model‐Predicted Shear‐Wave‐Splitting Parameters in NE Japan: Comparison With Observations

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract We model olivine crystal preferred orientation (CPO) and shear wave splitting (SWS) in the mantle wedge, using the results of a 3‐D numerical thermomechanical model for the NE Japan subduction zone. The model predicts a quasi‐2‐D trench‐normal (E‐W) mantle wedge flow pattern beneath Tohoku, given the trench‐normal subduction, but a more ...
Lindsey M. Kenyon, Ikuko Wada, Junichi Nakajima, Naoki Uchida   +3 more
wiley   +1 more source