Results 21 to 30 of about 793 (206)

Spatiotemporal evolution of tremor activity near the Nankai Trough trench axis inferred from the spatial distribution of seismic amplitudes

open access: yesEarth, Planets and Space, 2022
Slow earthquakes have gained importance due to their proximity to the focal regions of megathrust earthquakes. Among slow earthquakes, tectonic tremors have the highest dominant frequency and are thus best resolved.
Masashi Ogiso, Koji Tamaribuchi
doaj   +1 more source

Depth and Thickness of Tectonic Tremor in the Northeastern Olympic Peninsula

open access: yesJournal of Geophysical Research: Solid Earth, 2022
AbstractTectonic tremor has been explained as a swarm of low‐frequency earthquakes (LFEs), which are located on a narrow fault at the plate boundary. However, due to the lack of clear impulsive phases in the tremor signal, it is difficult to determine the depth of the tremor source with great precision.
A. Ducellier, K. C. Creager
openaire   +2 more sources

Tidal Response in Shallow Tectonic Tremors [PDF]

open access: yesGeophysical Research Letters, 2017
AbstractVarious types of slow earthquakes (e.g., tectonic tremors and slow slip events) have been reported in tectonic zones, especially in the subduction zone. The tidal response of a tremor is considered to be strongly related to the weak friction state of the plate interface, and many studies have reported observational evidence of such correlation ...
S. Katakami   +5 more
openaire   +1 more source

Tectonic tremor as friction-induced inertial vibration

open access: yesEarth and Planetary Science Letters, 2021
Abstract Slow slip events are often accompanied by tremor but how tremor is generated is yet elusive. In this study, we test the possibility that it is an inertial vibration. In the case of a single-degree-of-freedom spring and slider system with mass per unit area M, governed by rate-and-state friction with effective normal stress σ ...
Kyungjae Im, Jean-Philippe Avouac
openaire   +2 more sources

Variations in the Characteristic Amplitude of Tectonic Tremor Induced by Long-Term Slow Slip Events

open access: yes, 2021
Long-term slow slip events (L-SSEs) often excite short-term slow slips events (S-SSEs) and tectonic tremor in the zone of episodic tremor and slip (ETS).
90500744   +13 more
core   +2 more sources

Tidal Modulation and Tectonic Implications of Tremors in Taiwan [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2018
AbstractWe present results from 6 years of tremor observations in a continental subduction zone where the continental crust of Eurasia is colliding with the Philippine Sea Plate, forming a collisional orogen. During 2007–2012, 1,893 tremor events with durations ranging from 60 to 2,216 s were identified and located.
Kate Huihsuan Chen   +4 more
openaire   +1 more source

Cascading rupture of patches of high seismic energy release controls the growth process of episodic tremor and slip events

open access: yesEarth, Planets and Space, 2021
Slip phenomena on plate interfaces reflect the heterogeneous physical properties of the slip plane and, thus, exhibit a wide variety of slip velocities and rupture propagation behaviors.
Keita Nakamoto   +3 more
doaj   +1 more source

Chemical origin of tectonic tremor [PDF]

open access: yesNature Geoscience, 2019
Tectonic tremor may ultimately be caused by in situ fluid overpressure generated by chemical reactions between a subducting slab and the mantle, according to field and microstructural observations of a shear zone.
openaire   +1 more source

San Andreas Fault tremor and retrograde metamorphism [PDF]

open access: yes, 2011
[1] Tectonic tremor is an enigmatic low-frequency seismic phenomenon mainly observed in subduction zones, but also documented along the deep extension of the central San Andreas Fault. The physical mechanisms behind this unusual seismic event are not yet
Å Fagereng, J F A Diener
core   +2 more sources

Probing the nature of low-frequency earthquakes through the deconvolution of tectonic tremor

open access: yesJournal of Geophysical Research: Solid Earth, 2023
Currently there are two end-member views of low-frequency earthquakes (LFEs). One is that they result from stick-slip behavior of Mxed brittle patches that are mechanically distinct from the surrounding, creeping, fault. The other is that they represent the high-frequency limit of stochastic accelerations and decelerations of slip on the fault, with ...
Chao Song, Allan M. Rubin
openaire   +1 more source

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