Results 41 to 50 of about 2,623,465 (154)

Earthquake slip surfaces identified by biomarker thermal maturity within the 2011 Tohoku-Oki earthquake fault zone

open access: yesNature Communications, 2020
In this study, the authors investigate thermal alteration of organic biomarkers to detect paleo earthquakes in the Japan Trench. The study shows that large earthquakes like the 2011 Tohoku-Oki earthquake can slip through different types of sediment ...
Hannah S. Rabinowitz   +4 more
doaj   +1 more source

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

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   +1 more source

Normal faults geometry and slip tendency in the outer-rise of the Japan Trench

open access: yesProgress in Earth and Planetary Science
The incoming oceanic plate bends while approaching the subduction zone in the trench, and normal faults, which can cause earthquakes, develop because of the plate bending. Near the Japan Trench, historical outer-rise earthquakes (M8-class) that generated
Yue Sun   +4 more
doaj   +1 more source

Taxonomy of actinomycetes in the deep-sea Calyptogena communities and characterization of the antibacterial compound produced by Actinomadura sp. DS-MS-114

open access: yesBiotechnology & Biotechnological Equipment, 2017
Fifteen actinomycetes were isolated from deep-sea sediments in Calyptogena communities in the Japan Trench (depth: 5352 m) and Sagami Bay (depth: 1171 m) under incubation at 4–37 °C.
Atsushi Kurata   +7 more
doaj   +1 more source

Connection between high pore-fluid pressure and frictional instability at tsunamigenic plate boundary fault of 2011 Tohoku-Oki earthquake

open access: yesScientific Reports, 2022
The 2011 Tohoku-Oki earthquake (M 9.0) rupture propagated along a shallow plate boundary thrust fault (i.e. decollement) to the trench, displaced the seafloor, and triggered a devastating tsunami.
Ehsan Jamali Hondori, Jin-Oh Park
doaj   +1 more source

Dissolved inorganic carbon and sulphate concentrations in the pore water of sediment at the rim of a vesicomyd clam colony in the Japan Deep Sea Trench (dive 955)

open access: yes, 2014
Dissolved inorganic carbon and sulphate concentrations in the pore water of sediment at the rim of a vesicomyd clam colony in the Japan Deep Sea Trench (dive ...
Felden, Janine   +3 more
core   +1 more source

Anisotropic structure at shallow depths across the Japan Trench

open access: yesEarth, Planets and Space
Anisotropic structures within the crust are frequently perceived to originate from stress-induced cracks, which have been mainly estimated on land through different wave speeds of orthogonally polarized S waves propagating in the anisotropic media ...
Takashi Tonegawa   +2 more
doaj   +1 more source

Methane concentration and isotopic composition of cold seep sediment inhabit by vesicomyd clams in the Japan Deep Sea Trench (dive 957)

open access: yes, 2014
Methane concentration and isotopic composition of cold seep sediment inhabit by vesicomyd clams in the Japan Deep Sea Trench (dive ...
Ertefai, Tobias F   +3 more
core   +1 more source

Enhancing event stratigraphic correlations in the ultra‐deep Japan Trench using XRF‐CS cluster‐based chemostratigraphy

open access: yesThe Depositional Record
Establishing along‐strike correlations of event deposits in deep‐sea environments allows for the reconstruction of spatial and temporal patterns of geological processes, such as seismically triggered turbidites.
Jyh‐Jaan Steven Huang   +4 more
doaj   +1 more source

Tectonically-triggered sediment and carbon export to the Hadal zone

open access: yesNature Communications, 2018
Within sediments in deep ocean trenches an earthquake record may be observed. Here, the authors present 14C data on bulk organic carbon (OC) and thermal decomposition from a sediment core in the Japan Trench and match OC values with known earthquake ...
Rui Bao   +6 more
doaj   +1 more source

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