Results 41 to 50 of about 350 (172)

Abrupt Suppression of Tectonic Tremors Outside the Stress Shadow of Mendocino Earthquakes

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Tectonic tremor is a long‐duration noise‐like seismic signal associated with slow fault motion at major plate boundaries. Due to their remarkable sensitivity to stress perturbations, tremors serve as invaluable probes of the mechanical state and stress conditions deep within fault zones.
Weifan Lu, Satoshi Ide, Chunmei Ren
wiley   +1 more source

Tsunamigenic Earthquakes at Along-dip Double Segmentation and Along-strike Single Segmentation near Japan

open access: yesJournal of Marine Science and Engineering, 2015
A distinct difference of the earthquake activity in megathrust subduction zones is pointed out, concerning seismic segmentations in the vicinity of Japan—that is, the apparent distribution of earthquake hypocenters characterized by Along-dip Double ...
Junji Koyama   +2 more
doaj   +1 more source

Competing Effects of Elastic Heterogeneity and Viscous Flow on Interseismic Coupling at Cascadia

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Interseismic coupling maps are important tools for estimating future earthquake hazard at subduction zones. Often interseismic coupling is estimated from surface velocities using a homogeneous elastic Earth model. However, inversions that incorporate viscoelastic mantle flow or elastic heterogeneity show that each can change the spatial ...
E. M. Sherrill   +2 more
wiley   +1 more source

Modelling temporal changes in the gravity field in the Nankai Trough subduction zone, Japan [PDF]

open access: yes, 2021
Monitoring slow earthquake activity in subduction zones can give important insight into the stress build-up and subsequent rupture extent of megathrust earthquakes. Extensive slow earthquake activity occurs up-dip of the seismogenic zone of the Nankai Trough subduction zone, an area that might be awaiting a large (M
Siri Catherine Vassvåg   +4 more
openaire   +1 more source

Potential Bias in Inferred Megathrust Slip Rates Induced by the Neglect of Material Heterogeneity

open access: yesGeophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Accurate knowledge of the pattern of interseismic coupling on megathrusts is critical to preparing for future earthquakes and tsunamis. However, published models for a given fault zone commonly differ widely, making hazard assessment difficult.
Jeng‐Hann Chong, Eric O. Lindsey
wiley   +1 more source

Full‐scale Shaking Table Tests on a 10‐story Steel Moment‐resisting Frame Building with Buckling‐restrained Braces

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 10, Page 2356-2378, August 2026.
ABSTRACT In February 2023, a comprehensive series of shaking table tests were conducted at the E‐Defense facility, the world's largest three‐dimensional earthquake simulator, on a full‐scale 10‐story steel moment‐resisting frame supplemented with BRBs.
Jun Fujiwara   +9 more
wiley   +1 more source

Improving Detectability of Seafloor Deformation From Bottom Pressure Observations Using Numerical Ocean Models

open access: yesFrontiers in Earth Science, 2021
We investigated ocean bottom pressure (OBP) observation data at six plate subduction zones around the Pacific Ocean. The six regions included the Hikurangi Trough, the Nankai Trough, the Japan Trench, the Aleutian Trench, the Cascadia Subduction Zone ...
Yoichiro Dobashi, Daisuke Inazu
doaj   +1 more source

Modeling seismically induced deformation and fluid flow in the Nankai subduction zone [PDF]

open access: yesGeophysical Research Letters, 2005
Fluid pressure changes induced by seismic strains in the Nankai subduction zone were investigated through numerical modeling. Seismic strains resulting from dislocations along fault surfaces were coupled to pore pressure generation, and subsequent transient fluid flow was simulated.
S. Ge, E. Screaton
openaire   +1 more source

New 2010 Maule Aftershock Catalog Reveals Structure of the Deep Subduction Interface

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract On 27 February 2010, a Mw 8.8 earthquake occurred near Maule in south‐central Chile. The subsequent rapid deployment of a dense network of seismic stations on land was able to capture the first year of its aftershock sequence. Here, we revisit this data set using picking Artificial Intelligence tools, a 3D velocity model of the region and ...
C. Chalumeau, A. Rietbrock
wiley   +1 more source

THERMOGENIC PETROLEUM POTENTIAL OF THE NANKAI SUBDUCTION ZONE, OFFSHORE SW JAPAN [PDF]

open access: yesJournal of Petroleum Geology, 2019
In the Kumano forearc basin, offshore SW Japan, the potential occurrence of hydrocarbons has been inferred from both geophysical surveys which point to the presence of natural gas hydrates, and geochemical analyses of gas samples recovered from boreholes and submarine mud volcanoes.
K. Shiraishi, Y. Yamada, T. Nibe
openaire   +1 more source

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