Seismic tomography of compressional wave attenuation structure for
... frequency-independent attenuation operator. The Ω0ij term includes a geometrical spreading factor. However, amplitude also depends on the focusing/defocusing of rays by the heterogeneous velocity structure, which can be described by the second derivative of the traveltime curve and is complicated to ...
... frequency-independent attenuation operator. The Ω0ij term includes a geometrical spreading factor. However, amplitude also depends on the focusing/defocusing of rays by the heterogeneous velocity structure, which can be described by the second derivative of the traveltime curve and is complicated to ...
Climate change and Urban Vulnerability in Africa
... (one-to two story). PGA values are directly related to the lateral forces that damage short period. Longer-period SA (1.0s, 2.0s, etc.) depict the level of shaking that will have the greatest effect on longer-period structures (10+ story buildings, bridges, etc.). Ground motion attenuation relations ...
... (one-to two story). PGA values are directly related to the lateral forces that damage short period. Longer-period SA (1.0s, 2.0s, etc.) depict the level of shaking that will have the greatest effect on longer-period structures (10+ story buildings, bridges, etc.). Ground motion attenuation relations ...
All-Hazards/Threat Nonfiction System
... Motivation of a better tool? Replace Aging CUBE/REDI system – Low throughput – No Internet connectivity – DOS only – Aging hardware – Not scaleable ...
... Motivation of a better tool? Replace Aging CUBE/REDI system – Low throughput – No Internet connectivity – DOS only – Aging hardware – Not scaleable ...
A new seismically constrained subduction interface model for
... perturbations in seismic velocities in the mantle. Syracuse and Abers [2006] proposed an updated global model of subduction zone geometries using a combination of teleseismic and local seismicity. While these models are good representations of the subducted slabs, they lack resolution of the subduct ...
... perturbations in seismic velocities in the mantle. Syracuse and Abers [2006] proposed an updated global model of subduction zone geometries using a combination of teleseismic and local seismicity. While these models are good representations of the subducted slabs, they lack resolution of the subduct ...
Nature of the Vrancea seismic zone (Eastern Carpathians) – New
... the intermediate-depth seismicity beneath Vrancea. Using finitefrequency tomography of teleseismic P relative arrival time residuals, Ren et al. (2012) have obtained a high-resolution P-wave velocity model of the upper mantle beneath the Carpathian–Pannonian Region. They found that the Vrancea struct ...
... the intermediate-depth seismicity beneath Vrancea. Using finitefrequency tomography of teleseismic P relative arrival time residuals, Ren et al. (2012) have obtained a high-resolution P-wave velocity model of the upper mantle beneath the Carpathian–Pannonian Region. They found that the Vrancea struct ...
A New Seismic Model of the Eastern Alps and its Relevance for
... data is 2D interactive modelling based on ray tracing. This method provides detailed information on the velocity distribution within the crust and the uppermost mantle, in particular when intracrustal reflections (Pc) are additionally considered. However, this kind of interpretation is restricted to ...
... data is 2D interactive modelling based on ray tracing. This method provides detailed information on the velocity distribution within the crust and the uppermost mantle, in particular when intracrustal reflections (Pc) are additionally considered. However, this kind of interpretation is restricted to ...
Paper title - 14th World Conference on Earthquake Engineering
... slab and steel girder, by using the 3-dimensional finite element method. To be more precise, the maximum impact force is calculated when the installation site of the natural rubber are changed. In addition, the damage of the superstructure ends is investigated. From the numerical analyses, the damag ...
... slab and steel girder, by using the 3-dimensional finite element method. To be more precise, the maximum impact force is calculated when the installation site of the natural rubber are changed. In addition, the damage of the superstructure ends is investigated. From the numerical analyses, the damag ...
Buried large block revealed by gravity anomalies in the Tonankai... earthquakes regions, southwestern Japan
... Baba, T., Y. Tanioka, P. R. Cummins, and K. Uhira, The slip distribution of the 1946 Nankai earthquake estimated from tsunami inversion using a new plate model, Phys. Earth Planet. Inter., 132, 59–73, 2002. Cools, M., Thrust-type subduction-zone earthquakes and seamount asperities: A physical model ...
... Baba, T., Y. Tanioka, P. R. Cummins, and K. Uhira, The slip distribution of the 1946 Nankai earthquake estimated from tsunami inversion using a new plate model, Phys. Earth Planet. Inter., 132, 59–73, 2002. Cools, M., Thrust-type subduction-zone earthquakes and seamount asperities: A physical model ...
AFTERSHOCKS OF THE MANAGUA, NICARAGUA, EARTHQUAKE
... The earthquake of December 23, 1972, in Managua, the capital of Nicaragua, caused a major national disaster killing over 11,000 people, injuring over 20,000 people and destroying about 75 per cent of the housing units (Brown, Ward, and Plafker, 1973). Yet this earthquake had a body-wave magnitude of ...
... The earthquake of December 23, 1972, in Managua, the capital of Nicaragua, caused a major national disaster killing over 11,000 people, injuring over 20,000 people and destroying about 75 per cent of the housing units (Brown, Ward, and Plafker, 1973). Yet this earthquake had a body-wave magnitude of ...
Tsunamigenic earthquakes in the Gulf of Cadiz
... the operator to make decisions during the course of the event. The ultimate goal of any Tsunami Warning System is to provide the coastal areas that may be affected by a tsunami with an accurate forecast of the inundation level to be expected. Recent advances in computing performance and an increase ...
... the operator to make decisions during the course of the event. The ultimate goal of any Tsunami Warning System is to provide the coastal areas that may be affected by a tsunami with an accurate forecast of the inundation level to be expected. Recent advances in computing performance and an increase ...
What can the marine record tell us about tsunamis
... literature, however these types of deposits remain to some extent in the realm of speculation. Earthquake related turbidites have now been found in forearc basins, sounds, and fjords in Cascadia, so there is reason to believe they will be found elsewhere as well. The few reports of tsunami backwash ...
... literature, however these types of deposits remain to some extent in the realm of speculation. Earthquake related turbidites have now been found in forearc basins, sounds, and fjords in Cascadia, so there is reason to believe they will be found elsewhere as well. The few reports of tsunami backwash ...
evidence of basin-and-range extensional tectonics in the sierra
... An extensive earthquake swarm occurred at Durrwood Meadows in the southern Sierra Nevada of eastern California during late 1983 and 1984. It was located within a 100-km-long linear belt of seismicity that cuts through the southern Sierra Nevada along a north-southward strike. This seismic belt has b ...
... An extensive earthquake swarm occurred at Durrwood Meadows in the southern Sierra Nevada of eastern California during late 1983 and 1984. It was located within a 100-km-long linear belt of seismicity that cuts through the southern Sierra Nevada along a north-southward strike. This seismic belt has b ...
Onshore-offshore seismic transect from the eastern Nankai Trough to central
... The Nankai Trough is an active subduction zone where the Philippine Sea Plate subducts beneath the Japanese island arc. The convergence rate at the Nankai Trough is estimated to be 43–46 mm/yr from earthquake mechanism studies with geological constraints (Seno et al., 1993). Recent continuous Global ...
... The Nankai Trough is an active subduction zone where the Philippine Sea Plate subducts beneath the Japanese island arc. The convergence rate at the Nankai Trough is estimated to be 43–46 mm/yr from earthquake mechanism studies with geological constraints (Seno et al., 1993). Recent continuous Global ...
Pushover Analysis Of RCC Building With Soft Storey At Different Levels.
... different levels of structure are constructed. In the past earthquake has shown that the buildings with simple and uniform configurations are subjected to less damage. Regularity and continuity of stiffness in the horizontal planes as well as in vertical direction is very important from earthquake s ...
... different levels of structure are constructed. In the past earthquake has shown that the buildings with simple and uniform configurations are subjected to less damage. Regularity and continuity of stiffness in the horizontal planes as well as in vertical direction is very important from earthquake s ...
47. Structure and Evolution of the Central Kerguelen Plateau
... adjacent parts of the plateau. Rotstein et al. (1990) also suggested that the typical volcanic morphology was eroded from the SKP, leaving this large area without apparent volcanic sources as in the NKP. Figure 4 shows the two types of basement on two MCS profiles. Nonreflective acoustic basement is ...
... adjacent parts of the plateau. Rotstein et al. (1990) also suggested that the typical volcanic morphology was eroded from the SKP, leaving this large area without apparent volcanic sources as in the NKP. Figure 4 shows the two types of basement on two MCS profiles. Nonreflective acoustic basement is ...
Aftershock activity of the 2015 Gorkha, Nepal
... mainshock and aftershocks were recorded continuously by the international Kathmandu strong motion seismographic array operated by Hokkaido University and Tribhuvan University. Full waveform data without saturation for all events enabled us to clarify aftershock locations and decay characteristics. T ...
... mainshock and aftershocks were recorded continuously by the international Kathmandu strong motion seismographic array operated by Hokkaido University and Tribhuvan University. Full waveform data without saturation for all events enabled us to clarify aftershock locations and decay characteristics. T ...
Lateral Load Analysis of Shear Wall Framed Multistory
... walls have very high in plane stiffness and strength, which can be used to simultaneously resist large horizontal loads and support gravity loads, making them quite advantageous in many structural engineering applications .There are lots of literatures available to design and analyze the shear wall. ...
... walls have very high in plane stiffness and strength, which can be used to simultaneously resist large horizontal loads and support gravity loads, making them quite advantageous in many structural engineering applications .There are lots of literatures available to design and analyze the shear wall. ...
The depth effect of earthquakes on tsunami
... buoys did not record the tsunami waves (or, to be more precise, they were not selected from the background noise), and their oscillations are related to the seismoacoustic processes in the earthquake area. Mathematical models have been developed to describe coseismic acoustic oscillations and tsunam ...
... buoys did not record the tsunami waves (or, to be more precise, they were not selected from the background noise), and their oscillations are related to the seismoacoustic processes in the earthquake area. Mathematical models have been developed to describe coseismic acoustic oscillations and tsunam ...
Earthquake engineering
Earthquake engineering or Seismic engineering is a branch of engineering that searches for ways to make structures, such as buildings and bridges, resistant to earthquake damage. Earthquake engineer, better known as a seismic engineer aim to develop building techniques that will prevent any damage in a minor quake and avoid serious damage or collapse in a major shake. It is the scientific field concerned with protecting society, the natural environment, and the man-made environment from earthquakes by limiting the seismic risk to socio-economically acceptable levels. Traditionally, it has been narrowly defined as the study of the behavior of structures and geo-structures subject to seismic loading; it is considered as a subset of both structural and geotechnical engineering. However, the tremendous costs experienced in recent earthquakes have led to an expansion of its scope to encompass disciplines from the wider field of civil engineering, mechanical engineering and from the social sciences, especially sociology, political science, economics and finance. The main objectives of earthquake engineering are: Foresee the potential consequences of strong earthquakes on urban areas and civil infrastructure. Design, construct and maintain structures to perform at earthquake exposure up to the expectations and in compliance with building codes.A properly engineered structure does not necessarily have to be extremely strong or expensive. It has to be properly designed to withstand the seismic effects while sustaining an acceptable level of damage.