Moho: 100years after Andrija Mohorovi?
... Moho depth is typically 32–45 km depth in the interior of the Arabian plate and more than 50 km below the Zagros mountains. The Dead Sea Transform marks a decrease in Moho depth from almost 40 km beneath the highlands in the east to about 21–23 km under the southeastern Mediterranean Sea with a poss ...
... Moho depth is typically 32–45 km depth in the interior of the Arabian plate and more than 50 km below the Zagros mountains. The Dead Sea Transform marks a decrease in Moho depth from almost 40 km beneath the highlands in the east to about 21–23 km under the southeastern Mediterranean Sea with a poss ...
Mica, deformation fabrics and the seismic properties of the
... deformation state) sample of Nanga Parbat gneiss from field site B1 of Butler et al. (2002) with well-developed S–C fabrics was selected for detailed petrographic analysis and seismic property determination (Fig. 2). The geographical orientation of the sample was recorded at the time of sampling so t ...
... deformation state) sample of Nanga Parbat gneiss from field site B1 of Butler et al. (2002) with well-developed S–C fabrics was selected for detailed petrographic analysis and seismic property determination (Fig. 2). The geographical orientation of the sample was recorded at the time of sampling so t ...
A seismic discontinuity in the upper mantle between the Eastern
... Seismic investigation of the lithosphere by means of active source experiments is mostly confined to the crust and the Moho. Structures in the upper mantle are more likely to be discovered by analyses of teleseismic data, although these methods are restricted in their resolution capabilities. The rel ...
... Seismic investigation of the lithosphere by means of active source experiments is mostly confined to the crust and the Moho. Structures in the upper mantle are more likely to be discovered by analyses of teleseismic data, although these methods are restricted in their resolution capabilities. The rel ...
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... movement along the edges of tectonic plates. Three different plates meet in Japan. http://www.gdrc.org/oceans/un-seahorse/images/jishin.gif ...
... movement along the edges of tectonic plates. Three different plates meet in Japan. http://www.gdrc.org/oceans/un-seahorse/images/jishin.gif ...
TOPICAL REPORT YMPITR-002-NP: METHODOLOGY TO ASSESS FAULT DISPLACEMENTAND VIBRATORY GROUND
... repository at Yucca Mountain. The results of the methodology will also be input to total system performance assessments of long-term waste isolation at the site, which may generate postclosure seismic design requirements. In this context, the seismic hazard assessment will be used to evaluate earthq ...
... repository at Yucca Mountain. The results of the methodology will also be input to total system performance assessments of long-term waste isolation at the site, which may generate postclosure seismic design requirements. In this context, the seismic hazard assessment will be used to evaluate earthq ...
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... 2007). Because of the lateral resolution of these models, relating lithospheric anisotropy to regional tectonics is difficult. However, by using data from dense arrays of seismic stations, isotropic and anisotropic anomalies can be mapped with good resolution at a regional scale (Pedersen et al., 200 ...
... 2007). Because of the lateral resolution of these models, relating lithospheric anisotropy to regional tectonics is difficult. However, by using data from dense arrays of seismic stations, isotropic and anisotropic anomalies can be mapped with good resolution at a regional scale (Pedersen et al., 200 ...
Seismicity perspectives - School of Earth and Environment
... Figure 2. (a) DEM plot of the Dabbahu‐Manda Hararo rift segment. The shaded region shows the rift axis intruded by the 13 dikes between 2005 and 2009. (b) Along‐axis distance versus time plot of the dike intrusions and fissural eruptions for the Dabbahu‐Manda Hararo rift segment since 2005. Vertical ...
... Figure 2. (a) DEM plot of the Dabbahu‐Manda Hararo rift segment. The shaded region shows the rift axis intruded by the 13 dikes between 2005 and 2009. (b) Along‐axis distance versus time plot of the dike intrusions and fissural eruptions for the Dabbahu‐Manda Hararo rift segment since 2005. Vertical ...
Upper mantle deformation beneath the North American–Pacific plate
... USArray experiment that provide a dense network with a station spacing of about 50 km, increasing considerably the spatial resolution. Finally, we used three stations from the California Transect experiment. Station locations are shown in Figure 1a and are also listed in Table 1. [9] We analyzed SKS ...
... USArray experiment that provide a dense network with a station spacing of about 50 km, increasing considerably the spatial resolution. Finally, we used three stations from the California Transect experiment. Station locations are shown in Figure 1a and are also listed in Table 1. [9] We analyzed SKS ...
Geological Aspect of Slope Failure and Mitigation
... In addition, the geological map of the Lhokseumawe quadrangle showed the geological structures in this area such as faults and folds. Fold axess have a general north – south directions. An east-west orientated fault indicates a right-lateral strike slip fault (dextral) with the offset being visible ...
... In addition, the geological map of the Lhokseumawe quadrangle showed the geological structures in this area such as faults and folds. Fold axess have a general north – south directions. An east-west orientated fault indicates a right-lateral strike slip fault (dextral) with the offset being visible ...
An acoustic wave equation for modeling in tilted TI media
... applied to Eq.(5) with absorbing boundaries. In this common shot gather it is hard to see the S-wave because we placed the source in the water which is a isotropic medium. The shot records clearly shows how events are shifted both vertically and laterally when tilt angle is considered. The moveout ...
... applied to Eq.(5) with absorbing boundaries. In this common shot gather it is hard to see the S-wave because we placed the source in the water which is a isotropic medium. The shot records clearly shows how events are shifted both vertically and laterally when tilt angle is considered. The moveout ...
A glassy Lowermost Outer Core
... Lianxing Wen (State University of New York at Stony Brook) The accumulation of seismic data recorded in the Global Seismographic Network (GSN) makes it possible for many discoveries to be made related to the Earth’s inner core. One of these discoveries in recent years is the localized temporal chang ...
... Lianxing Wen (State University of New York at Stony Brook) The accumulation of seismic data recorded in the Global Seismographic Network (GSN) makes it possible for many discoveries to be made related to the Earth’s inner core. One of these discoveries in recent years is the localized temporal chang ...
Multi-mode conversion imaging of the subducted Gorda and Juan
... model, the time-to-depth conversion warps the late signal (i.e. mainly the multiples) more than the earlier signal in the RFs. To take into account this stretching effect and turn the forward and back-scattered images to similar wavelengths, the data are filtered with different low-pass corner freque ...
... model, the time-to-depth conversion warps the late signal (i.e. mainly the multiples) more than the earlier signal in the RFs. To take into account this stretching effect and turn the forward and back-scattered images to similar wavelengths, the data are filtered with different low-pass corner freque ...
Analysis of seismic anisotropy parameters for sedimentary strata
... relationships among the Thomsen parameters. The study showed little indication of the correlations between the anisotropy parameters except for the possible range and sign of the parameters. The simulation results were not very helpful for understanding the seismic anisotropic properties of sediment ...
... relationships among the Thomsen parameters. The study showed little indication of the correlations between the anisotropy parameters except for the possible range and sign of the parameters. The simulation results were not very helpful for understanding the seismic anisotropic properties of sediment ...
Reply to comment by Hillis et al.(2013)
... than those obtained by inverting subsidence data which suggest only 0–1 km (Rowley & White 1998). Thus averaged fission track estimates show that the East Midlands Shelf was denuded by 0.83 ± 0.5 km. At Flamborough Head itself, Hillis et al. (2008) proposed that denudation is ∼2 km. Stewart & Bailey ...
... than those obtained by inverting subsidence data which suggest only 0–1 km (Rowley & White 1998). Thus averaged fission track estimates show that the East Midlands Shelf was denuded by 0.83 ± 0.5 km. At Flamborough Head itself, Hillis et al. (2008) proposed that denudation is ∼2 km. Stewart & Bailey ...
Theory of compressional and transverse wave propagation in
... uted to viscosity of the pore fluid. As with any viscous medium, this gives rise to an attenuation coefficient that depends on frequency, f, scaling as f 2 at low frequencies and as f 1/2 above some threshold frequency. Correspondingly, his wave speeds are dispersive, increasing as f 1/2 at higher ...
... uted to viscosity of the pore fluid. As with any viscous medium, this gives rise to an attenuation coefficient that depends on frequency, f, scaling as f 2 at low frequencies and as f 1/2 above some threshold frequency. Correspondingly, his wave speeds are dispersive, increasing as f 1/2 at higher ...
Science_Barcelona_final24july - Nearest
... The WNW-ESE trending SWIM Lineaments occur from the Hirondelle Seamount, cutting across the Horseshoe Abyssal Plain, the continental rise and accretionary wedge through the Morocco shelf (Figs. 3 and 4). These lineaments are distributed within a WNW-ESE striking, 600 km long x 80 km wide area, i.e. ...
... The WNW-ESE trending SWIM Lineaments occur from the Hirondelle Seamount, cutting across the Horseshoe Abyssal Plain, the continental rise and accretionary wedge through the Morocco shelf (Figs. 3 and 4). These lineaments are distributed within a WNW-ESE striking, 600 km long x 80 km wide area, i.e. ...
Theoretical mineralogy, density, seismic wave speeds, and H2O
... Much about subduction zones remains unknown because all our information comes either from indirect geophysical observations or observation of fossil subduction zone rocks. In particular, we would like to understand: the hydration state of the mantle wedge and the incoming slab; where and why slabs d ...
... Much about subduction zones remains unknown because all our information comes either from indirect geophysical observations or observation of fossil subduction zone rocks. In particular, we would like to understand: the hydration state of the mantle wedge and the incoming slab; where and why slabs d ...
An alternative mechanism of pile failure in
... and verified using dynamic centrifuge tests. A new parameter, the slenderness ratio of a pile is introduced to classify pile performance in liquefiable soils. This parameter fits very well the reported case histories and the centrifuge test results. INTRODUCTION There has been confusion among engine ...
... and verified using dynamic centrifuge tests. A new parameter, the slenderness ratio of a pile is introduced to classify pile performance in liquefiable soils. This parameter fits very well the reported case histories and the centrifuge test results. INTRODUCTION There has been confusion among engine ...
6 W A V E REPORTING PROCEDURES TSUNAMI
... of the sea floor. In this way vast expanses of lowlands are sometimes inundated by sudden rises in sea level with the arrival of the larger waves. The waves are set in motion by underwater disturbances, usually associated with large earthquakes in the underlying sea floor or coastal areas. The first ...
... of the sea floor. In this way vast expanses of lowlands are sometimes inundated by sudden rises in sea level with the arrival of the larger waves. The waves are set in motion by underwater disturbances, usually associated with large earthquakes in the underlying sea floor or coastal areas. The first ...
Probabilistic prediction of rupture length, slip and
... A more flexible approach to study the rupture probabilities along faults is by the application of stochastic slip models that can be tuned from G-R- to CE-like behaviour. These models can be used to generate series of spatially variable slip (Liu-Zeng et al. 2005). Slip heterogeneities can be caused ...
... A more flexible approach to study the rupture probabilities along faults is by the application of stochastic slip models that can be tuned from G-R- to CE-like behaviour. These models can be used to generate series of spatially variable slip (Liu-Zeng et al. 2005). Slip heterogeneities can be caused ...
Earthquake casualty estimation
Recent advances are improving the speed and accuracy of loss estimates immediately after earthquakes (within less than an hour) so that injured people may be rescued more efficiently. After major and large earthquakes, rescue agencies and civil defense managers rapidly need quantitative estimates of the extent of the potential disaster, at a time when information from the affected area may not yet have reached the outside world. For the injured below the rubble every minute counts.To rapidly provide estimates of the extent of an earthquake disaster is much less of a problem in industrialized than in developing countries. This article focuses on how one can estimate earthquake losses in developing countries in real time.