Deformation and seismicity near Sabancaya volcano, southern Peru
... deformation in the same region as the 17 July 2013 earthquake, presumably related to aftershock activity and postseismic deformation (Figure 2e). A simple distributed slip model with a uniform rake of 90° was considered to model the EW normal fault earthquake of 25 July which was recorded by the Glo ...
... deformation in the same region as the 17 July 2013 earthquake, presumably related to aftershock activity and postseismic deformation (Figure 2e). A simple distributed slip model with a uniform rake of 90° was considered to model the EW normal fault earthquake of 25 July which was recorded by the Glo ...
Earthquake rupture below the brittle-ductile transition in continental
... 150 MPa, depending on source model assumptions (see fig. S2). All these values are relatively high compared to those of shallow earthquakes (14) but similar to those of other intermediate-depth earthquakes (12, 15) of similar size. We calculate the earthquake-radiated energy ES by averaging frequenc ...
... 150 MPa, depending on source model assumptions (see fig. S2). All these values are relatively high compared to those of shallow earthquakes (14) but similar to those of other intermediate-depth earthquakes (12, 15) of similar size. We calculate the earthquake-radiated energy ES by averaging frequenc ...
Publication Link - Pennsylvania Housing Research Center
... In recent years, numerous mid-rise and high-rise modular buildings have been built around the world (MBI, 2011). Due to lack of specific code or standard for construction of multistory modular buildings, different innovative structural systems are used in these buildings, and general building code r ...
... In recent years, numerous mid-rise and high-rise modular buildings have been built around the world (MBI, 2011). Due to lack of specific code or standard for construction of multistory modular buildings, different innovative structural systems are used in these buildings, and general building code r ...
IOSR Journal of Mechanical and Civil Engineering (IOSRJMCE)
... isolators and TMD are found to be effective in the neighbourhood of the fundamental resonant frequency of the structure. Base isolators are found to be superior in controlling the acceleration response. However, for base motions of low frequencies base isolators perform badly. Several practical syst ...
... isolators and TMD are found to be effective in the neighbourhood of the fundamental resonant frequency of the structure. Base isolators are found to be superior in controlling the acceleration response. However, for base motions of low frequencies base isolators perform badly. Several practical syst ...
Earthquakes - Perry Local Schools
... that has accumulated over a long time” (Shedlock and Pakiser). Earthquakes occur far more often than most people think. However, few of these earthquakes are strong enough to be felt by humans. Even fewer have the strength to cause major damage to people or to property. In fact, many earthquakes hap ...
... that has accumulated over a long time” (Shedlock and Pakiser). Earthquakes occur far more often than most people think. However, few of these earthquakes are strong enough to be felt by humans. Even fewer have the strength to cause major damage to people or to property. In fact, many earthquakes hap ...
Types of Faults
... Strike-Slip Fault The fault exists between two pieces of crust and the Movement occurs horizontally where the sides slide past each other. ...
... Strike-Slip Fault The fault exists between two pieces of crust and the Movement occurs horizontally where the sides slide past each other. ...
UGRC 144_Session 3
... the Earth releases energy. • The science of earthquakes is seismology, "study of shaking" in scientific Greek. Earthquake energy comes from the stresses of plate tectonics. • As plates move, the rocks on their edges deform and take up strain until the weakest point, a fault, ruptures and releases th ...
... the Earth releases energy. • The science of earthquakes is seismology, "study of shaking" in scientific Greek. Earthquake energy comes from the stresses of plate tectonics. • As plates move, the rocks on their edges deform and take up strain until the weakest point, a fault, ruptures and releases th ...
seismic risk mitigation for mission-critical facilities
... Despite the above results and the findings of the Symantec survey, Data Centres can be designed to remain operational after major earthquakes. When the design team explicitly addresses seismic risk, mitigation strategies can be subsequently implemented with very satisfactory results. Examples of suc ...
... Despite the above results and the findings of the Symantec survey, Data Centres can be designed to remain operational after major earthquakes. When the design team explicitly addresses seismic risk, mitigation strategies can be subsequently implemented with very satisfactory results. Examples of suc ...
Making the Earth Shake - Paleontological Research Institution
... lons of fluid into a well under extremely high pressures and at average rates of 3,000 gallons per minute. When this Hydraulic fracturing has been pressure exceeds the strength of the commercially used by the oil and gas rock, fractures are formed and/or enindustry to fracture rock units since large ...
... lons of fluid into a well under extremely high pressures and at average rates of 3,000 gallons per minute. When this Hydraulic fracturing has been pressure exceeds the strength of the commercially used by the oil and gas rock, fractures are formed and/or enindustry to fracture rock units since large ...
Seismic retrofit
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.