Results 1 to 10 of about 157,185 (186)
Sporadic low-velocity volumes spatially correlate with shallow very low frequency earthquake clusters [PDF]
Nature 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 +5 more sources
Bridging the gap between low-frequency and very-low-frequency earthquakes [PDF]
Earth, 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 +4 more sources
Geophysical Research Letters, 2019 AbstractA very low‐frequency earthquake is a type of seismic event that is rich in low frequencies and depleted in higher frequencies compared to regular fast local earthquakes of similar magnitude. The source process behind very low‐frequency earthquakes is still poorly understood.
David Oglesby, Abhijit Ghosh
exaly +3 more sources
Physics of the Earth and Planetary Interiors, 2015 AbstractA large number of shallow low frequency events were recorded after the 2011 Mw 9.0 Tohoku-oki earthquake by the cabled network of broadband ocean bottom seismometers (DONET) deployed in the eastern part of the Nankai trough. This low frequency event activity was intense for the first few days after the great earthquake and gradually decreased ...
Koichiro Obana +2 more
exaly +3 more sources
Very Low Frequency Earthquakes in Between the Seismogenic and Tremor Zones in Cascadia? [PDF]
AGU Advances, 2022 AbstractMegathrust earthquakes and their associated tsunamis cause some of the worst natural disasters. In addition to earthquakes, a wide range of slip behaviors are present at subduction zones, including slow earthquakes that span multiple orders of spatial and temporal scales.
Wenyuan Fan +6 more
openaire +4 more sources
Very Low Frequency Earthquakes Modulate Regular Fast Earthquakes at the Central Range in Taiwan
Geophysical Research Letters, 2023 AbstractSlow earthquakes in the form of tremors and low frequency earthquakes (low‐frequency earthquakes) occur along the south‐central range of Taiwan (Aguiar et al., 2017, https://doi.org/10.1002/2016gl072148; Chao et al., 2012, https://doi.org/10.1111/j.1365-246x.2011.05261.x; Tang et al., 2010, https://doi.org/10.1029/2010gl043918).
K. Chaudhuri, A. Ghosh
openaire +3 more sources
Geophysical Research Letters, 2022 We detected shallow very low frequency earthquakes (VLFEs) off the Cape Muroto and Kii Channel in the Nankai subduction zone and estimated their moment rate functions.
Kentaro Emoto +2 more
exaly +2 more sources
High Sensitivity Very Low Frequency Receiver for Earthquake Data Acquisition [PDF]
TELKOMNIKA (Telecommunication Computing Electronics and Control), 2017 A high sensitivity very low frequency (VLF) receiver is developed based on AD744 monolithic operational amplifier (Op-Amp) for earthquake data acquisition. In research related natural phenomena such as atmospheric noise, lightning and earthquake, a VLF receiver particularly with high sensitivity is utterly required due to the low power of VLF wave ...
Achmad Munir +5 more
openaire +2 more sources
Distribution of low-frequency earthquakes accompanying the very low frequency earthquakes along the Ryukyu Trench [PDF]
Earth, 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
Very low frequency earthquakes off the Pacific coast of Tohoku, Japan [PDF]
Geophysical Research Letters, 2015 AbstractWe found very low frequency earthquakes (VLFEs) at a shallow subduction zone close to the Japan Trench off the Pacific coast of Tohoku, Japan. Centroid moment tensor solutions of VLFEs showed reverse fault mechanisms with a compression axis in the east‐west direction. A cross‐correlation analysis of seismograms with template events between 2005
Youichi Asano +2 more
exaly +2 more sources