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The Friuli (NE-Italy) tilt/strain gauges and short term observations
tiltmeter strainmeter short term observations
2015/10/8
The tilt/strainmeter network of the Department of Earth Sciences of the University of Trieste, has by now a long history of records, the Trieste Grotta Gigante horizontal pendulum station having been ...
Seismic response to stress-strain fields in the lithosphere of Sicily
stress strain lithosphere Sicily
2015/9/30
Earthquake locations and fault-plane solutions are investigated in Sicily and the surrounding areas, by using local network data for the period 1988-1995, and a recently proposed 3D model of the local...
Precursory accelerated Benioff strain in the Aegean area
Benioff strain critical point Aegean area
2015/9/28
Accelerating seismic crustal deformation due to the occurrence of intermediate magnitude earthquakes leading to the generation of a mainshock has recently been considered a critical phenomenon. This h...
Strain pattern of the Southern Tyrrhenian slab from moment tensors of deep earthquakes:implications on the down-dip velocity
southern tyrrhenian seimin strain rate tensor down-dip velocity aseismic subduction
2015/9/28
Seismic strain is analysed along the slab face of the Southern Tyrrhenian subduction zone using focal mechanisms of deep earthquakes which occurred in the period 1960-1998. Results show that the slab ...
Slip weakening, strain and short-termpreseismic disturbances
slip weakening accelerated creep short-term earthquake precursor strain spatialtemporalscale mosaic pattern teleseismic effects
2015/9/14
The problem of short-term earthquake precursors is discussed. In contrast to the increasing number of reports on short-lived precursors of various types, direct strain measurements cannot detect clear...
Kinematics and strain analyses of the eastern segment of the Pernicana Fault (Mt.Etna,Italy) derived from geodetic techniques (1997-2005)
GPS EDM ground deformation Pernicana Fault Mt. Etna
2015/9/8
This paper analyses the ground deformations occurring on the eastern part of the Pernicana Fault from 1997 to 2005. This segment of the fault was monitored with three local networks based on GPS and E...
Seismic strain and stress field studies in Italy before and after the Umbria-Marche seismic sequence:a review
moment tensor seismotectonics
2015/9/1
The seismic sequence that hit Umbria and Marche during 1997 and 1998 was particularly significant because it dramatically marked the evolution of analysis tools and the development of our geophysical ...
Strain patterns along the Kaparelli–Asopos rift (central Greece) from campaign GPS data
GPS Strain Kaparelli Central Greece
2015/8/14
We present results from four GPS campaigns in the broader Kaparelli–Asopos area in central Greece. This area is undergoing extension as demonstrated by seismological, geodetic and geological data. The...
Microscale strain partitioning? Differential quartz crystallographic fabric development in Phyllite, Hindu Kush, Northwestern Pakistan
Space the fabrics of quartz c axis the overall structure quartz grains
2015/1/6
Spatially referenced quartz c axis fabrics demonstrate the preservation of multiple, distinct fabrics in a specimen collected from northwestern Pakistan. The overall fabric yielded by the specimen is ...
Strain localisation in mechanically layered rocks beneath detachment zones: insights from numerical modelling
Fully dynamic numerical simulation of the seepage plate separation zone mode localization testing
2015/1/5
We have designed a series of fully dynamic numerical simulations aimed at assessing how the orientation of mechanical layering in rocks controls the orientation of shear bands and the depth of penetra...
Giant strain-sensitivity of acoustic energy dissipation in solids containing dry and saturated cracks with wavy interfaces
strain-sensitivity solids containing dry and saturated cracks
2011/9/2
Mechanisms of acoustic energy dissipation in heterogeneous solids attract much attention in view of their importance for material characterization, nondestructive testing, and geophysics. Due to the ...
Integration of transient strain events with models of plate coupling and areas of great earthquakes in southwest Japan
Time-series analysis Transient deformation Subduction zone processes
2014/4/9
We model the crustal deformation caused by two long-term subduction slip transients in southwest Japan, which we refer to as the 2000–2004 Tokai and the 2002–2004 Bungo Channel slow slip events (SSEs)...
Linear and nonlinear modulus surfaces in stress space,from stress-strain measurements on Berea sandstone
Linear and nonlinear modulus surfaces stress space stress-strain measurements Berea sandstone
2009/11/12
The elastic response of many rocks to quasistatic stress changes is highly nonlinear and hysteretic, displaying discrete memory. Rocks also display unusual nonlinear response to dynamic stress changes...
Time-scale invariant changes in atmospheric radon concentration and crustal strain prior to a large earthquake
Time-scale invariant changes atmospheric radon concentration crustal strain earthquake
2009/11/2
Prior to large earthquakes (e.g. 1995 Kobe earthquake, Japan), an increase in the atmospheric radon concentration is observed, and this increase in the rate follows a power-law of the time-to-earthqua...
The Alignment of Earthquake T-Axes with the Principal Axes of Geodetic Strain in the Aegean Region
earthquake T-axes geodetic strain Aegean region
2009/7/8
The relation between the orientations of the T-axes of earthquakes occurring within the continental crust of the Aegean, and the orientations of the principal axes of geodetic strains is examined. It ...