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The Earth's Surface Controls the Depth‐Dependent Seismic Radiation of Megathrust Earthquakes

open access: yesAGU Advances, 2021
Megathrust earthquakes exhibit a ubiquitous seismic radiation style: low‐frequency (LF) seismic energy is efficiently emitted from the shallowest portion of the fault, whereas high‐frequency (HF) seismic energy is efficiently emitted from the deepest ...
Jiuxun Yin, Marine A. Denolle
doaj   +2 more sources

Nonlinear Radiation Damping: A New Method for Dissipating Energy in Dynamic Earthquake Rupture Simulations

open access: yesThe Seismic Record, 2023
Dynamic earthquake rupture simulations are used to understand earthquake mechanics and the ground shaking that earthquakes produce. These simulations can help diagnose past earthquake behavior and are also used to generate scenarios of possible future ...
Michael Barall, Ruth A. Harris
doaj   +2 more sources

Off-fault damage controls near-surface rupture behaviour in soft sediments [PDF]

open access: yesNature Communications
Surface-rupturing faults represent some of the most devastating examples of earthquake-related hazards. Near surface rupture behaviour is poorly understood, due to limited information concerning the amount of off-fault energy dissipated in a volume ...
Nicola De Paola   +4 more
doaj   +2 more sources

Statistical Analysis of High–Energy Particle Perturbations in the Radiation Belts Related to Strong Earthquakes Based on the CSES Observations

open access: yesRemote Sensing, 2023
Earthquakes (EQs) are a significant natural threat to humanity. In recent years, with advancements in space observation technology, it has been put forward that the electromagnetic effects of earthquakes can propagate into space in various ways, causing ...
Lu Wang   +9 more
doaj   +3 more sources

Pre-Seismic Irregularities during the 2020 Samos (Greece) Earthquake (M = 6.9) as Investigated from Multi-Parameter Approach by Ground and Space-Based Techniques

open access: yesAtmosphere, 2021
We present a comprehensive analysis of pre-seismic anomalies as computed from the ground and space-based techniques during the recent Samos earthquake in Greece on 30 October 2020, with a magnitude M = 6.9.
Sudipta Sasmal   +7 more
doaj   +1 more source

Studies of Earthquake Energies in Taiwan: A Review

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2016
This paper reviews studies on earthquake energies, seismic efficiency, radiation efficiency, scaled energy and energy-magnitude law conducted by Taiwan seismologists and foreigners who used seismic data from Taiwan to study these problems.
Jeen-Hwa Wang
doaj   +1 more source

Focal mechanism of Luding M 6.8 earthquake, September 2022 and analysis of the loading role of the tectonic stress on the seismogenic fault

open access: yesEarthquake Research Advances, 2023
To reveal the seismogenic mechanism of the Luding earthquake, we employed the 118 China Seismic Network stations to collect the P-wave polarity data from each station, which was then used in the P-wave first motion approach to calculate the focal ...
Yansong Hu   +3 more
doaj   +1 more source

Early Emergency Responses of the Japan Atomic Energy Agency against the Fukushima Daiichi Nuclear Power Station Accident in 2011 [PDF]

open access: yesJournal of Radiation Protection and Research, 2021
Background The Japan Atomic Energy Agency (JAEA) is specified in the Disaster Countermeasures Basic Act as a designated public corporation for dealing with nuclear disasters.
Hiroshi Okuno   +4 more
doaj   +1 more source

Estimating Rupture Front of Large Earthquakes Using a Novel Multi-Array Back-Projection Method

open access: yesFrontiers in Earth Science, 2021
A ruptured front obtained from high-frequency energy radiation is the key to understand the complex source. It is commonly observed that rupture fronts derived from different arrays often show some variations due to the obvious difference of the ...
Hailin Du
doaj   +1 more source

Earth’s gravity ― the reason of earthquakes

open access: yesГеофизический журнал, 2019
In the paper, an attempt has been made to describe seismic processes by means of classical mechanics. Dynamic parameters such as energy, impulse, and forces that determine the movement of masses are estimated.
S. V. Mishin   +2 more
doaj   +1 more source

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