Results 71 to 80 of about 3,999 (200)

Along‐Strike Coupling Heterogeneity in Cascadia's Slow‐Slip Zone Constrained by GNSS and Reduced‐Order Rate‐And‐State Friction Modeling

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Slow slip events (SSEs) in the Cascadia subduction zone exhibit along‐strike segmentation, where the central segment has longer recurrence intervals but smaller moments. We quantify the controls on this variability by combining geodetic inter‐SSE coupling inversion with Bayesian inference of a quasi‐dynamic rate‐and‐state friction SSE‐cycle ...
Yohai Magen   +2 more
wiley   +1 more source

A geologic window into a subduction megathrust

open access: yesEos, Transactions American Geophysical Union, 2007
Megathrust faults marking the subduction of oceanic plates are fundamental features of plate tectonics. In addition, these faults have significant societal relevance since friction along them can generate devastating earthquakes. One of the most important tasks in solid Earth sciences is to understand the mechanical and thermal processes that ...
Mihai Ducea, Steven Kidder, John Chesley
openaire   +1 more source

3D Subduction Interface Model for the Hikurangi Margin, New Zealand: Implications for Slow Slip Events

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract We present a new 3D Hikurangi subduction interface model by using an implicit modeling approach that integrates seismic‐reflection profiles, relocated hypocenters, focal mechanism orientations, and tomographic interpretations. The model reveals along‐strike transitions in slow slip events (SSEs) that correlate with subduction interface ...
Haoran Ma   +4 more
wiley   +1 more source

Sumatran megathrust earthquakes: from science to saving lives [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006
Most of the loss of life, property and well-being stemming from the great Sumatran earthquake and tsunami of 2004 could have been avoided and losses from similar future events can be largely prevented. However, achieving this goal requires forging a chain linking basic science—the study of why, when and where these events occur—to people's everyday ...
openaire   +4 more sources

Obliquity limit of megathrust earthquakes

open access: yes
The largest earthquakes occur on subduction-zone megathrusts, where plates commonly converge obliquely to trenches and generate trench-parallel strain. How this strain is partitioned between megathrust slip and upper-plate deformation remains uncertain ...
Xiaochuan Tian, Magali Billen
core   +1 more source

Probabilistic tsunami hazard analysis of Batukaras, a tourism village in Indonesia [PDF]

open access: yesNatural Hazards and Earth System Sciences
Indonesia's location in the middle of tectonic plates makes it vulnerable to earthquakes and tsunamis, especially in the megathrust zone around the island of Sumatra and the southern part of the island of Java.
W. Windupranata   +7 more
doaj   +1 more source

The 2025 Kamchatka Earthquake and Tsunami: Cascading Impacts and Risks to Japan

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2837-2854, September 2026.
ABSTRACT On July 29th, 2025, a large earthquake (Mw 8.8) occurred near the Kamchatka Peninsula. This event caused a tsunami that reached Japan's Pacific coast, even though the source was far away. In this study, we analyze the characteristics of earthquakes and tsunamis and discuss how they relate to the recurrence possibility and risk in Japan.
Ampan Laosunthara   +6 more
wiley   +1 more source

Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2618-2633, September 2026.
ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley   +1 more source

Data for megathrust earthquakes (2)

open access: yes, 2023
Waveform data and hypocenter data of the megathrust earthquakes used in the analysis are included. 'wv.dat' contains vertical, north-south, east-west components and 'tr.dat' contains transverse components. 'hypo_thrust_wv.dat' contains the hypocentral data used for waveform analysis from the catalogue of the Japan Meteorological Agency.
openaire   +1 more source

Relating Megathrust Seismogenic Behavior and Subduction Parameters via Machine Learning at Global Scale

open access: yesGeophysical Research Letters
We investigate the relationship between the seismogenic behavior of global megathrusts and various subduction parameters. We performed a parametric approach by implementing three decision tree‐based Machine Learning (ML) algorithms to predict the b‐value
Lucas Crisosto, Andrés Tassara
doaj   +1 more source

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