![Epicenter Location](http://s1.studyres.com/store/data/014994385_1-5fe89d1a035152323a1f455616baed33-300x300.png)
Epicenter Location
... FaultEpicenterFocusFocal Depth-P-WaveS-WaveSeismographSeismogramINTRODUCTION: Earthquakes occur when there is movement within the crust along a fault. This movement creates waves which travel through the Earth. These seismic waves are radiated in every direction from the focus. An earthquake occurs ...
... FaultEpicenterFocusFocal Depth-P-WaveS-WaveSeismographSeismogramINTRODUCTION: Earthquakes occur when there is movement within the crust along a fault. This movement creates waves which travel through the Earth. These seismic waves are radiated in every direction from the focus. An earthquake occurs ...
Mapping the Liquefaction Susceptible Zones in Parts of
... RRSSC-ISRO, IIT Campus, Kharagpur – 721302. * MWRD, Space Application Centre, Ahmedabad-380015 ...
... RRSSC-ISRO, IIT Campus, Kharagpur – 721302. * MWRD, Space Application Centre, Ahmedabad-380015 ...
Aftershock activity of the 2015 Gorkha, Nepal
... part of the focal region was also identified. The maximum coseismic slip there was estimated from several studies (Galetzka et al. 2015; Yagi and Okuwaki 2015; Fan and Shearer 2015; Wang and Fialko 2015). These data suggest that aftershocks occurred around the major slip region of the mainshock and ...
... part of the focal region was also identified. The maximum coseismic slip there was estimated from several studies (Galetzka et al. 2015; Yagi and Okuwaki 2015; Fan and Shearer 2015; Wang and Fialko 2015). These data suggest that aftershocks occurred around the major slip region of the mainshock and ...
Seismic Wave Behavior—Effect on Buildings
... rupture. These waves shake the ground as they pass by. An earthquake is felt if the shaking is strong enough to cause ground accelerations exceeding approximately 1.0 centimeter/second squared. Elastic Properties—the measure of an objects ability to change shape when a force is applied to it, and re ...
... rupture. These waves shake the ground as they pass by. An earthquake is felt if the shaking is strong enough to cause ground accelerations exceeding approximately 1.0 centimeter/second squared. Elastic Properties—the measure of an objects ability to change shape when a force is applied to it, and re ...
The effect of loading rate on static friction and the rate of fault
... seismic and tectonic slip rates, I demonstrate that post-seismic healing is expected to be retarded for a period of several hundred days following an earthquake, in agreement with recent findings from repeating earthquakes13,14,19,20. The problem of how faults regain strength between earthquakes is ...
... seismic and tectonic slip rates, I demonstrate that post-seismic healing is expected to be retarded for a period of several hundred days following an earthquake, in agreement with recent findings from repeating earthquakes13,14,19,20. The problem of how faults regain strength between earthquakes is ...
Tsunami Lecture
... waves generated when water in a lake or the sea is rapidly displaced on a massive scale. They are often caused by underwater earthquakes, landslides or a volcanic eruption, but can also be caused by large meteorite impacts. The term tsunami comes from the Japanese language meaning harbor (tsu) and w ...
... waves generated when water in a lake or the sea is rapidly displaced on a massive scale. They are often caused by underwater earthquakes, landslides or a volcanic eruption, but can also be caused by large meteorite impacts. The term tsunami comes from the Japanese language meaning harbor (tsu) and w ...
STATISTICAL ANALYSIS TOWARDS THE IDENTIFICATION OF
... - In general, the probability distribution model appropriate to describe a random phenomenon is not known. - However, the required probability distribution model may be determined empirically based on the available observational data (probability papers). - Then, the assumed probability distribution ...
... - In general, the probability distribution model appropriate to describe a random phenomenon is not known. - However, the required probability distribution model may be determined empirically based on the available observational data (probability papers). - Then, the assumed probability distribution ...
Opportunities For Wood in Low
... studies—one cost comparison and one life-cycle assessment (LCA)—on the same big box project designed in steel versus wood. Having received the drawings for a one-story, 54,800-square-foot steelframe big box store in California, WoodWorks commissioned the design of a comparable building using wood ma ...
... studies—one cost comparison and one life-cycle assessment (LCA)—on the same big box project designed in steel versus wood. Having received the drawings for a one-story, 54,800-square-foot steelframe big box store in California, WoodWorks commissioned the design of a comparable building using wood ma ...
Earthquake scaling relations for mid
... relations 1 and 2 apply, then moment balance requires that the dimensionless seismic productivity, n0 / N_ 0/ATV, should scale as n0 / AT1/4, which we confirm using small events. Hence the frequencies of both small and large earthquakes adjust with AT to maintain constant coupling. RTF scaling rela ...
... relations 1 and 2 apply, then moment balance requires that the dimensionless seismic productivity, n0 / N_ 0/ATV, should scale as n0 / AT1/4, which we confirm using small events. Hence the frequencies of both small and large earthquakes adjust with AT to maintain constant coupling. RTF scaling rela ...
Computing Earthquake Probabilities on Global Scales
... Here the data catalogs are generally complete (at least in southern California) from 1932 for magnitudes larger than about !m ≥ 3.0 [9,21]. These data were recorded on analog recorders and later digitized and added to the catalogs many years later. However, even though these early events may be incl ...
... Here the data catalogs are generally complete (at least in southern California) from 1932 for magnitudes larger than about !m ≥ 3.0 [9,21]. These data were recorded on analog recorders and later digitized and added to the catalogs many years later. However, even though these early events may be incl ...
neural-network-based approach for prediction of the fire resistance
... and keep its mechanical properties which provides higher fire resistance. Additional disadvantage of the partly encased section, in terms of fire resistance, is the proportional participation of the steel section which is higher than the one in the concrete hollow section; therefore, the partly enca ...
... and keep its mechanical properties which provides higher fire resistance. Additional disadvantage of the partly encased section, in terms of fire resistance, is the proportional participation of the steel section which is higher than the one in the concrete hollow section; therefore, the partly enca ...
abstract - Purdue e-Pubs
... layer on the dynamic response of the high-speed train-CRTS Ⅱ ballastless slab track-bridge system subjected to seismic events and train loading. In particular, the focus is on the cushion action of the CAM layer that are typically the primary supporting, load transfer, adjustment, and buffer action ...
... layer on the dynamic response of the high-speed train-CRTS Ⅱ ballastless slab track-bridge system subjected to seismic events and train loading. In particular, the focus is on the cushion action of the CAM layer that are typically the primary supporting, load transfer, adjustment, and buffer action ...
On the recurrence of great subduction zone earthquakes
... that most long-term geologic slip on faults or plate boundaries are accomplished by characteristic earthquakes31. Important underlying assumptions are that faults and plate boundaries are segmented, that each characteristic earthquake reduces the stress to a uniform base level and that the time to t ...
... that most long-term geologic slip on faults or plate boundaries are accomplished by characteristic earthquakes31. Important underlying assumptions are that faults and plate boundaries are segmented, that each characteristic earthquake reduces the stress to a uniform base level and that the time to t ...
ARTICLES - Lamont-Doherty Earth Observatory
... Prediction of damaging ground motion Most of the catastrophic damage in earthquakes occurs close to the earthquake source, but relatively few recordings of strong shaking close to an earthquake have been made. The ground motion near the 2004 earthquake29 was recorded at eight sites within 1 km of th ...
... Prediction of damaging ground motion Most of the catastrophic damage in earthquakes occurs close to the earthquake source, but relatively few recordings of strong shaking close to an earthquake have been made. The ground motion near the 2004 earthquake29 was recorded at eight sites within 1 km of th ...
Texte intégral View
... the entire period and not only the more recent earthquakes was meaningful, since each earthquake could be considered a marker for the presence of crustal fluid. Further away from the fault, the model shows an upper crust resistivity in excess of 1000 Vm on either side. This large value is consistent ...
... the entire period and not only the more recent earthquakes was meaningful, since each earthquake could be considered a marker for the presence of crustal fluid. Further away from the fault, the model shows an upper crust resistivity in excess of 1000 Vm on either side. This large value is consistent ...
Ambient noise crosscorrelation observations of - Fan
... used to study seismic velocity structure at scales of 10 m (e.g., S wave structure in the uppermost 30 m for seismic hazard assessment [e.g., Louie, 2001]) to >107 m (e.g., continental-scale crustal structure [Moschetti et al., 2010]). [3] The ellipticity of Rayleigh wave particle motion, often expr ...
... used to study seismic velocity structure at scales of 10 m (e.g., S wave structure in the uppermost 30 m for seismic hazard assessment [e.g., Louie, 2001]) to >107 m (e.g., continental-scale crustal structure [Moschetti et al., 2010]). [3] The ellipticity of Rayleigh wave particle motion, often expr ...
B. Measurement of Seismic Wave
... is machined by stainless steel and other materials which have similar acoustic impedance with salt water to enhance the transfer efficiency from electric energy to acoustic energy. The piston-like electrodes were also designed to enhance the transfer efficiency from electric energy to mechanical ene ...
... is machined by stainless steel and other materials which have similar acoustic impedance with salt water to enhance the transfer efficiency from electric energy to acoustic energy. The piston-like electrodes were also designed to enhance the transfer efficiency from electric energy to mechanical ene ...
Relationship between Modified Mercalli Intensity and peak ground
... quently related to the PGA because this engineering ground-motion parameter is the most commonly correlated parameter to structural damage and it is important for seismic resistant structure design [12]. This study, therefore, used the PGA to calibrate with the obtained macroseismic intensity data. ...
... quently related to the PGA because this engineering ground-motion parameter is the most commonly correlated parameter to structural damage and it is important for seismic resistant structure design [12]. This study, therefore, used the PGA to calibrate with the obtained macroseismic intensity data. ...
Seismic retrofit
![](https://commons.wikimedia.org/wiki/Special:FilePath/ExteiorShearTruss.jpg?width=300)
Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. With better understanding of seismic demand on structures and with our recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged. Prior to the introduction of modern seismic codes in the late 1960s for developed countries (US, Japan etc.) and late 1970s for many other parts of the world (Turkey, China etc.), many structures were designed without adequate detailing and reinforcement for seismic protection. In view of the imminent problem, various research work has been carried out. State-of-the-art technical guidelines for seismic assessment, retrofit and rehabilitation have been published around the world - such as the ASCE-SEI 41 and the New Zealand Society for Earthquake Engineering (NZSEE)'s guidelines. These codes must be regularly updated; the 1994 Northridge earthquake brought to light the brittleness of welded steel frames, for example.The retrofit techniques outlined here are also applicable for other natural hazards such as tropical cyclones, tornadoes, and severe winds from thunderstorms. Whilst current practice of seismic retrofitting is predominantly concerned with structural improvements to reduce the seismic hazard of using the structures, it is similarly essential to reduce the hazards and losses from non-structural elements. It is also important to keep in mind that there is no such thing as an earthquake-proof structure, although seismic performance can be greatly enhanced through proper initial design or subsequent modifications.