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Bridging the gap between low-frequency and very-low-frequency earthquakes [PDF]

open access: yesEarth, Planets and Space, 2020
Slow earthquakes that are observed in the > 1 Hz frequency band are called tectonic tremor or low-frequency earthquakes (LFEs) and those in the 0.01–0.10 Hz band are called very-low-frequency earthquakes (VLFEs).
Koki Masuda   +3 more
doaj   +3 more sources

Low-frequency earthquakes along the Ryukyu Islands triggered by teleseismic earthquakes [PDF]

open access: yesEarth, Planets and Space, 2021
Tremors and low-frequency earthquakes (LFEs), which occur in the plate interface, can provide useful information about the state of aseismic stress transfer in mega-earthquake fault zones.
Ayumi Kinjo, Mamoru Nakamura
doaj   +2 more sources

Distribution of low-frequency earthquakes accompanying the very low frequency earthquakes along the Ryukyu Trench [PDF]

open access: yesEarth, Planets and Space, 2017
This study investigated the activity and distribution of low-frequency earthquakes (LFEs) accompanying the very low frequency earthquakes (VLFEs) in the central and southern Ryukyu Trench.
Mamoru Nakamura
doaj   +2 more sources

The slow self-arresting nature of low-frequency earthquakes [PDF]

open access: yesNature Communications, 2021
Low-frequency earthquakes are a series of small earthquakes with lower dominant frequencies than ordinary earthquakes. By comparing the simulated earthquakes with the real data, we find that low-frequency earthquakes represent an earthquake rupture ...
Xueting Wei   +3 more
doaj   +3 more sources

Shaking table test and numerical analysis of nuclear piping under low- and high-frequency earthquake motions [PDF]

open access: yesNuclear Engineering and Technology, 2022
A nuclear power plant (NPP) piping is designed against low-frequency earthquakes. However, earthquakes that can occur at NPP sites in the eastern part of the United States, northern Europe, and Korea are high-frequency earthquakes.
Shinyoung Kwag   +7 more
doaj   +2 more sources

Sporadic low-velocity volumes spatially correlate with shallow very low frequency earthquake clusters [PDF]

open access: yesNature Communications, 2017
In the Nankai subduction zone a low-velocity zone (LVZ) has been detected. Here, the authors present shear wave velocity profiles to show that low frequency earthquakes correlate with the distribution of the LVZ in the Nankai subduction zone.
Takashi Tonegawa   +5 more
doaj   +2 more sources

Comparison of statistical low-frequency earthquake activity models

open access: yesEarth, Planets and Space, 2023
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   +2 more sources

Self-similarity of low-frequency earthquakes [PDF]

open access: yesScientific Reports, 2020
AbstractLow-frequency earthquakes are a particular class of slow earthquakes that provide a unique source of information on the physical processes along a subduction zone during the preparation of large earthquakes. Despite increasing detection of these events in recent years, their source mechanisms are still poorly characterised, and the relation ...
M. Supino   +5 more
openaire   +5 more sources

What makes low-frequency earthquakes low frequency?

open access: yesScience Advances, 2023
Low-frequency earthquakes are repetitive seismic events that occur downdip of the seismogenic megathrust where slow aseismic fault slip dominates the tectonic budget. These tiny events, distinct from regular earthquakes, have the potential to provide in-situ constraints on the fault rheology where slow slip occurs, but are hard to study due to their ...
Qing-Yu Wang   +4 more
openaire   +2 more sources

Overview of worldwide earthquake disasters in 2020

open access: yes地震科学进展, 2021
Based on the earthquake disaster data collected worldwide,this paper sorts out the global seismic activity and disasters in 2020. Plotting the global earthquake disaster curves in recent 20 years and distribution map of hazard earthquakes in 2020,and ...
Geng Qian, Wei Feng
doaj   +1 more source

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