Imag(in)ing the continental lithosphere
... limited to the small number of exposures of usually fragmented ophiolites and peridotite massifs. Outcrop scale (1–100 cm) features seen in the Beni–Bousera peridotite massif led Allegre and Turcotte (1986) to propose the “marble-cake” mantle model and Kellogg and Turcotte (1990) to develop a predic ...
... limited to the small number of exposures of usually fragmented ophiolites and peridotite massifs. Outcrop scale (1–100 cm) features seen in the Beni–Bousera peridotite massif led Allegre and Turcotte (1986) to propose the “marble-cake” mantle model and Kellogg and Turcotte (1990) to develop a predic ...
Seismic Behavior of Soft First Storey
... vertical direction is one of them, as a result of which soft storey is formed. In the dissertation work a parametric study is performed on multistoried building with soft first storey, located in seismic zone IV. It is intended to describe the performance characteristics such as stiffness, shear for ...
... vertical direction is one of them, as a result of which soft storey is formed. In the dissertation work a parametric study is performed on multistoried building with soft first storey, located in seismic zone IV. It is intended to describe the performance characteristics such as stiffness, shear for ...
Steel Construction
... annually sold more than 10,000 houses. In the 1980s, in spite of the severe operating environment caused by the oil shock and other events, the number of homebuilders that annually produced and sold more than 10,000 homes increased further, and systems were developed for building homes with three or ...
... annually sold more than 10,000 houses. In the 1980s, in spite of the severe operating environment caused by the oil shock and other events, the number of homebuilders that annually produced and sold more than 10,000 homes increased further, and systems were developed for building homes with three or ...
Effects of Openings in Shear Wall on Seismic Response of Structures
... and lifts. Due to functional requirements such as doors, windows, and other openings, a shear wall in a building contains many openings. The size and location of openings may vary from architectural and functional point of view. In most of the apartment building, size and location of openings in she ...
... and lifts. Due to functional requirements such as doors, windows, and other openings, a shear wall in a building contains many openings. The size and location of openings may vary from architectural and functional point of view. In most of the apartment building, size and location of openings in she ...
Seismic velocities, density, porosity, and permeability measured at a
... differences might be due to the effect of effective pressures on seismic velocities (cf. Fam and Santamarina, 1997; Zimmer et al., 2007a). In the followings, the correlations between seismic velocity and porosity will be studied based only on well-logged values of seismic velocities, because the num ...
... differences might be due to the effect of effective pressures on seismic velocities (cf. Fam and Santamarina, 1997; Zimmer et al., 2007a). In the followings, the correlations between seismic velocity and porosity will be studied based only on well-logged values of seismic velocities, because the num ...
Elastic Anisotropy of a Metamorphic Rock Sample of the Canadian
... Vestrum and Lawton 2010). Metamorphic rock is commonly assumed to have isotropic, transversely isotropic, or orthorhombic symmetry based on the degree of foliation and mineral alignment (e.g., Kern and Wenk 1990; Takanashi et al. 2001; Cholach et al. 2005). An isotropic rock has no detectable textur ...
... Vestrum and Lawton 2010). Metamorphic rock is commonly assumed to have isotropic, transversely isotropic, or orthorhombic symmetry based on the degree of foliation and mineral alignment (e.g., Kern and Wenk 1990; Takanashi et al. 2001; Cholach et al. 2005). An isotropic rock has no detectable textur ...
Depth to the Juan de Fuca Slab Beneath the Cascadia Subduction
... We present an updated model of the Juan de Fuca slab beneath southern British Columbia, Washington, Oregon, and northern California, and use this model to separate earthquakes occurring above and below the slab surface. The model is based on depth contours previously published by Flück and others (1 ...
... We present an updated model of the Juan de Fuca slab beneath southern British Columbia, Washington, Oregon, and northern California, and use this model to separate earthquakes occurring above and below the slab surface. The model is based on depth contours previously published by Flück and others (1 ...
KeyGraph as Risk Explorer in Earthquake-Sequence
... active faults is inexpensive and efficient. Seismic gaps (areas earthquakes did not occur in but only around recently) may be regarded as risky (Ohtake, 1994). However, a seismic gap may have no natural cause of earthquakes. Earthquake risks at an active fault were estimated from its recorded histor ...
... active faults is inexpensive and efficient. Seismic gaps (areas earthquakes did not occur in but only around recently) may be regarded as risky (Ohtake, 1994). However, a seismic gap may have no natural cause of earthquakes. Earthquake risks at an active fault were estimated from its recorded histor ...
2003 Miyagi-Hokubu (Japonya) - YERBİLİMLERİ
... have been recently undertaken to progress on short-term prediction. As also shown by the author, the stress rates derived from the GPS deformation rates can be effectively used to locate the areas with high seismic risk. Furthermore, daily variations of derived strain-stress rates from dense GPS net ...
... have been recently undertaken to progress on short-term prediction. As also shown by the author, the stress rates derived from the GPS deformation rates can be effectively used to locate the areas with high seismic risk. Furthermore, daily variations of derived strain-stress rates from dense GPS net ...
SEISMOTECTONIC OF THE AZORES-ALBORAN - UPStrat-MAFA
... one fourth of the houses in Lisbon were totally destroyed with many persons killed. Damage was also reported from towns in Spain and northern Morocco and the shock was felt as far away as Holland and Switzerland. There are descriptions of tsunamis along the southwest coast of Portugal. The intensity ...
... one fourth of the houses in Lisbon were totally destroyed with many persons killed. Damage was also reported from towns in Spain and northern Morocco and the shock was felt as far away as Holland and Switzerland. There are descriptions of tsunamis along the southwest coast of Portugal. The intensity ...
The 869 Jogan tsunami deposit
... Information on the scale and geometry of fault movements facilitates accurate reproduction of tsunami. The distribution of observed aftershocks within the accretionary wedge forms a seismic plane, indicative of a thrust fault dipping around 45° westerly (Hino et al., 1996). For this model, we conduc ...
... Information on the scale and geometry of fault movements facilitates accurate reproduction of tsunami. The distribution of observed aftershocks within the accretionary wedge forms a seismic plane, indicative of a thrust fault dipping around 45° westerly (Hino et al., 1996). For this model, we conduc ...
Seismotectonics of Badra-Amarah Fault, Iraq
... According to Numan (1997), the Mesopotamian Zone is a sagged basin and represents a huge graben that formed as a result of subsidence of the block located between the Euphrates and Makhul-Hemrin faults during the extensional tectonic phase of the Mesozoic Era (Fig. 1). Alluvial fans on the eastern s ...
... According to Numan (1997), the Mesopotamian Zone is a sagged basin and represents a huge graben that formed as a result of subsidence of the block located between the Euphrates and Makhul-Hemrin faults during the extensional tectonic phase of the Mesozoic Era (Fig. 1). Alluvial fans on the eastern s ...
Subduction factory 2. Are intermediate
... include any intraslab event shallower than 300 km and downdip from the thrust zone. Such earthquakes are frequent and damaging in some subduction zones (e.g., the MS = 7.8 El Salvador earthquake of 13 January 2001, which killed >1200 people), such that understanding and predicting their distribution ...
... include any intraslab event shallower than 300 km and downdip from the thrust zone. Such earthquakes are frequent and damaging in some subduction zones (e.g., the MS = 7.8 El Salvador earthquake of 13 January 2001, which killed >1200 people), such that understanding and predicting their distribution ...
Mapping the evolving strain field during continental breakup from
... of the fast S-wave (φ) and the time delay between the fast and slow S-waves (δt) (Supplementary Fig. S1). The seismograms are derived from local earthquakes in Ethiopia occurring at a depth of 4–22 km (Supplementary Table S1). More than one S-wave splitting measurement is available at a number of th ...
... of the fast S-wave (φ) and the time delay between the fast and slow S-waves (δt) (Supplementary Fig. S1). The seismograms are derived from local earthquakes in Ethiopia occurring at a depth of 4–22 km (Supplementary Table S1). More than one S-wave splitting measurement is available at a number of th ...
empirical correlation between the shear
... Varaždin is located in the north-western part of Croatia in shallow quaternary alluvial sediments of the Drava River basin. Local site effects due to the alluvial soft sediments can play a crucial role in the amplification of seismic-wave ground motions. The shear-wave velocity (VS) is one of the mo ...
... Varaždin is located in the north-western part of Croatia in shallow quaternary alluvial sediments of the Drava River basin. Local site effects due to the alluvial soft sediments can play a crucial role in the amplification of seismic-wave ground motions. The shear-wave velocity (VS) is one of the mo ...
International Journal of Advance Research in Engineering
... Construction of high-rise buildings used to be driven by the demand for space in densely populated land areas. Advancements in structural engineering and technology have greatly pushed the height limit. Combined with the improvement in fabrication and construction methods, the construction of skyscr ...
... Construction of high-rise buildings used to be driven by the demand for space in densely populated land areas. Advancements in structural engineering and technology have greatly pushed the height limit. Combined with the improvement in fabrication and construction methods, the construction of skyscr ...
Tectonic fabric of the subcontinental lithosphere
... Preface / Physics of the Earth and Planetary Interiors 158 (2006) 85–91 ...
... Preface / Physics of the Earth and Planetary Interiors 158 (2006) 85–91 ...
Thesis_combine - The Nevada Seismological Laboratory
... Fliedner et al., 2000). However, the Kern Volcanic field erupted Pliocene rocks that are similar to Miocene rocks (Farmer et al., 2002), not from delamination in opinion and results. Also, there is no strong evidence for these Pliocene, K-rocks north of 38 N, but the root was most likely root remove ...
... Fliedner et al., 2000). However, the Kern Volcanic field erupted Pliocene rocks that are similar to Miocene rocks (Farmer et al., 2002), not from delamination in opinion and results. Also, there is no strong evidence for these Pliocene, K-rocks north of 38 N, but the root was most likely root remove ...
Where Are Earthquakes Happening Right Now? Worksheet
... 1. Make a list of places around the world where you think earthquakes occur. Think about places you have read about or seen on the news. Example answers: Haiti, California, Chile, Peru, Japan 2. Think specifically about earthquakes in the U.S. What regions or states do you think experience the most ...
... 1. Make a list of places around the world where you think earthquakes occur. Think about places you have read about or seen on the news. Example answers: Haiti, California, Chile, Peru, Japan 2. Think specifically about earthquakes in the U.S. What regions or states do you think experience the most ...
The Effect of P-wave Propagation on the Seismic Behavior of Steel
... that structures located in areas 2 or 5 times more than the focal depth are affected by the body waves and in structures located in areas beyond 5 times more than the focal depth are dominated by surface waves. O’Rourke et al. [27] have presented graphs for changes in RL wave speed in layered soil p ...
... that structures located in areas 2 or 5 times more than the focal depth are affected by the body waves and in structures located in areas beyond 5 times more than the focal depth are dominated by surface waves. O’Rourke et al. [27] have presented graphs for changes in RL wave speed in layered soil p ...
Seismically Driven Characterization and
... The ultimate objective of this workflow is to derive dynamic models that are able to reproduce past individual well performances minimizing the need for time-consuming history matching. This provides an additional validation of the fracture models derived using the CFM approach. Using geologic model ...
... The ultimate objective of this workflow is to derive dynamic models that are able to reproduce past individual well performances minimizing the need for time-consuming history matching. This provides an additional validation of the fracture models derived using the CFM approach. Using geologic model ...
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.