Results 21 to 30 of about 934 (178)

Preparation zones for large crustal earthquakes consequent on fault-valve action

open access: yesEarth, Planets and Space, 2020
A combination of geological evidence (in the form of hydrothermal vein systems in exhumed fault systems) and geophysical information around active faults supports the localized invasion of near-lithostatically overpressured aqueous fluids into lower ...
Richard H. Sibson
doaj   +1 more source

Geological constraints on dynamic changes of fluid pressure in seismic cycles

open access: yesScientific Reports, 2022
Fluid pressure along faults plays a significant role in fault behaviors in seismic cycles in subduction zones. When a thermal pressurization event occurs, the fluid pressure rises; conversely, when a fault-valve behavior event occurs, the fluid pressure ...
Takahiro Hosokawa, Yoshitaka Hashimoto
doaj   +1 more source

Seismic Hazard Analysis and Developping the Acceleration Zoning Maps in the Khark Island, Persian Gulf Iran [PDF]

open access: yesمخاطرات محیط طبیعی, 2015
Khark Island is located in the southern margin of the Zagros folded belt in the northeast of the Arabian plate. This study is focused on active geological characteristics of the area understudy, where there is defined 11 seismogenic zones. The seismicity
Mehdi Zare   +2 more
doaj   +1 more source

Testing the Utilization of a Seismic Network Outside the Main Mining Facility Area for Expanding the Microseismic Monitoring Coverage in a Deep Block Caving

open access: yesApplied Sciences, 2022
In the case of mining in an inclined intrusion using the block caving method, the highest stress is usually concentrated in the seismogenic and abutment zones, especially in the front of the sloping area.
Wahyu Hidayat   +9 more
doaj   +1 more source

Recognition of earthquake-prone nodes, a case study for North Vietnam (M ⩾ 5.0)

open access: yesGeodesy and Geodynamics, 2012
Morphostructural nodes in North Vietnam are delineated with the morphostructural zoning (MZ) method, and classified into seismogenic and non-seismogenic nodes.
Nguyen Huu Tuyen, Ngo Thi Lu
doaj   +1 more source

Joint inversion of Rayleigh group and phase velocities for S-wave velocity structure of the 2021 MS6.0 Luxian earthquake source area, ChinaKey points

open access: yesEarthquake Science, 2023
On September 16, 2021, a MS6.0 earthquake struck Luxian County, one of the shale gas blocks in the Southeastern Sichuan Basin, China. To understand the seismogenic environment and its mechanism, we inverted a fine three-dimensional S-wave velocity model ...
Wei Xu   +6 more
doaj   +1 more source

Structuralkinematic identification of seismogenic zones of the Zagros system (according to the solutions of the mechanisms of earthquake)

open access: yesГеофизический журнал, 2013
On the base of results of analysis of structuralkinematic parageneses of ruptures and displacements in the earthquakes foci of the foldedfaulted Zagrosa system the main types of seismogene sis have been substantiated and their stereographic models ...
Yu.M. Volfman
doaj   +1 more source

Spatial changes in inclusion band spacing as an indicator of temporal changes in slow slip and tremor recurrence intervals

open access: yesEarth, Planets and Space, 2021
Slow slip and tremor (SST) downdip of the seismogenic zones may trigger megathrust earthquakes by frequently transferring stress to seismogenic zones.
Naoki Nishiyama   +2 more
doaj   +1 more source

Major California faults are smooth across multiple scales at seismogenic depth

open access: yesSeismica, 2023
Surface traces of earthquake faults are complex and segmented on multiple scales. At seismogenic depth the detailed geometry of faults and earthquake rupture is mainly constrained by earthquake locations.
Anthony Lomax, Pierre Henry
doaj   +1 more source

Forecasting of possible seismogenic zones in the Dnieper-Donetsk paleorift

open access: yesГеофизический журнал, 2012
As a result of complex geologic-geophysical investigations data analysis in the territory of the Dnieper-Donets paleorift (DDP) along DSS-profiles stretched across this structure, four possible seismogenic zones were distinguished.
A. A. Trypol'skii   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy