Results 161 to 170 of about 2,043,383 (218)

Rheological separation of the megathrust seismogenic zone and episodic tremor and slip

Nature, 2017
Episodic tremor and accompanying slow slip, together called ETS, is most often observed in subduction zones of young and warm subducting slabs. ETS should help us to understand the mechanics of subduction megathrusts, but its mechanism is still unclear.
Kelin Wang, Wang Kelin
exaly   +4 more sources

In Situ Stress Orientation From 3 km Borehole Image Logs in the Koyna Seismogenic Zone, Western India: Implications for Transitional Faulting Environment

Tectonics, 2020
Knowledge of the in situ stress regime is critical to investigate the genesis of recurrent triggered seismicity over the past five decades in the Koyna seismogenic zone.
D. Goswami, P. Hazarika, Sukanta Roy
semanticscholar   +1 more source

Seismogenic width of a fault zone

Doklady Earth Sciences, 2011
High-precision catalogues containing data on the spatial distribution of earthquake sources associated with several fault zones have been processed. The analysis shows a high degree of spatial localization of seismicity. Most of the events are observed in a narrow zone with a characteristic width of about 100 m. This value is a part of a percent of the
G. G. Kocharyan, S. B. Kishkina, A. A. Ostapchuk   +2 more
openaire   +1 more source

Dual-Driven Fault Failure in the Lower Seismogenic Zone

, 2020
Frictional instability leading to fault rupture may be driven by increasing differential stress or by increases in pore-fluid pressure within the rock mass.
R. Sibson
semanticscholar   +1 more source

Characterization of Seismogenic Zones of Romania

Pure and Applied Geophysics, 2000
—Although the time and magnitude range covered by available seismological data is limited, several significant regional trends are outlined in the seismogenic zones of Romania. Vrancea region, which is by far the most seismically active area, has a persistent rate of occurrence of intermediate-depth earthquakes, clustered in a very confined focal ...
M. Radulian, N. Mândrescu, G. F. Panza, E. Popescu, A. Utale   +4 more
openaire   +1 more source

Seismogenic zoning of southeast Australia

Australian Journal of Earth Sciences, 1997
In the period from 1958 to 1996 the Australian National University seismological network has located more than 7600 earthquakes in southeastern Australia with a network concentrated between Canberra and Sydney. This catalogue of earthquakes provides a good database for the analysis of the temporal and spatial distribution of events in the region.
E. Spassov, B. Kennett, J. Weekes
openaire   +1 more source

Delineation of Damage Zones From 3 km Downhole Geophysical Logs in the Koyna Seismogenic Zone, Western India

Journal of Geophysical Research - Solid Earth, 2019
Delineation of subsurface faults and damage zones is a major goal of scientific drilling projects in seismically active areas. Geophysical logs acquired in a 3‐km deep scientific borehole KFD1 in the Koyna seismogenic zone, a site of recurrent reservoir ...
D. Goswami, Sukanta Roy, Vyasulu V. Akkiraju   +2 more
semanticscholar   +1 more source

Seismogenic structure in the source zone of the 1918 M7.5 NanAo earthquake in the northern South China Sea

, 2020
As a typical rifted margin, the coastal region of the northern South China Sea has experienced many large crustal earthquakes in the past 400 years. For example, two destructive earthquakes with ~M7.0 in 1600 and ~M7.5 in 1918 occurred close to the NanAo
S. Xia, Pengxiang Zhou, Dapeng Zhao, Jinghe Cao   +3 more
semanticscholar   +1 more source

A Note on the Geometric Configuration of Seismogenic Zones

Seismological Research Letters, 1986
An empirical classification scheme, based upon a length to thickness ratio, is developed to describe the geometric configuration of seismogenic zones as planar, tabular, or volumnar. That scheme is applied to 33 recent, high-quality studies of seismicity patterns and aftershock studies in the contiguous United States, Alaska, Canada, Nicaragua ...
G. A. Bollingerl, C. J. Langer
openaire   +1 more source

The seismogenic zone of subduction thrust faults

Island Arc, 1997
Abstract Subduction thrust faults generate earthquakes over a limited depth range. They are aseismic in their seaward updip portions and landward downdip of a critical point. The seaward shallow aseismic zone, commonly beneath accreted sediments, may be a consequence of unconsolidated sediments, especially stable‐sliding smectite clays.
R. D. Hyndman, M. Yamano, D. A. Oleskevich   +2 more
openaire   +1 more source