INTRODUCTION OF A PERFORMANCE
... Slight loss of structural strength takes place but Keep Limited main functions are operational at the the building is still capable to resist aftershock. limited recovery of infrastructure etc. Immediate repair is not needed. function Almost fully operational with repair. Small Scale Damage Although ...
... Slight loss of structural strength takes place but Keep Limited main functions are operational at the the building is still capable to resist aftershock. limited recovery of infrastructure etc. Immediate repair is not needed. function Almost fully operational with repair. Small Scale Damage Although ...
Seismicity in the northeast area of Izu Peninsula, Japan, comparing
... 5. The isothermal map of geothermal water Fig. 4 shows an isothermal map of the Hakone and its adjacent areas at 400 m below sea-level and a north–south cross-section of the isothermal map (Oki and Hirano, 1974). This map is based on measurements of temperature in more than 300 deep wells. Their ave ...
... 5. The isothermal map of geothermal water Fig. 4 shows an isothermal map of the Hakone and its adjacent areas at 400 m below sea-level and a north–south cross-section of the isothermal map (Oki and Hirano, 1974). This map is based on measurements of temperature in more than 300 deep wells. Their ave ...
Earthquake Sources and Hazard in Northern Central America
... inspection of earthquake activity maps reveals high seismicity in the area. According to historical records, large earthquakes, reaching magnitudes up to M=8 have occurred in this region. In the last 25 years, 3 earthquakes with magnitude larger than 7 have struck northern Central America, causing g ...
... inspection of earthquake activity maps reveals high seismicity in the area. According to historical records, large earthquakes, reaching magnitudes up to M=8 have occurred in this region. In the last 25 years, 3 earthquakes with magnitude larger than 7 have struck northern Central America, causing g ...
Relocation of aftershocks, focal mechanisms and stress inversion:
... Schweig et al., 2003). Large earthquakes are known to have been occurring in the Kachchh region since historical times (Rajendran and Rajendran, 2001). It has been inferred, based on the radiocarbon dating, that an earthquake occurred between A.D. 885–1035 along the Allah Bund fault (Rajendran and R ...
... Schweig et al., 2003). Large earthquakes are known to have been occurring in the Kachchh region since historical times (Rajendran and Rajendran, 2001). It has been inferred, based on the radiocarbon dating, that an earthquake occurred between A.D. 885–1035 along the Allah Bund fault (Rajendran and R ...
Vertical and Horizontal Seismic Impedance Moments, and Corner
... The vertical and horizontal impedance-corner frequencies are also called the P-wave and S-wave corner frequencies, respectively (Molnar et al., 1973). For normal earthquakes, the horizontal impedance-corner frequency is slightly higher than the vertical impedance-corner frequency, because the vertic ...
... The vertical and horizontal impedance-corner frequencies are also called the P-wave and S-wave corner frequencies, respectively (Molnar et al., 1973). For normal earthquakes, the horizontal impedance-corner frequency is slightly higher than the vertical impedance-corner frequency, because the vertic ...
Seismic Assessment and Rehabilitation of Historic Structures
... must be considered. During this exercise it is necessary to look ahead into the future, and to eliminate the need for further remedial intervention. The fact that such structures have already existed, perhaps much longer than was envisaged when they were first built, and even survived a few earthqua ...
... must be considered. During this exercise it is necessary to look ahead into the future, and to eliminate the need for further remedial intervention. The fact that such structures have already existed, perhaps much longer than was envisaged when they were first built, and even survived a few earthqua ...
report
... process of their generation focusing specifically on the hazard due to large events in the NMSZ. Our review solicited input from scientists, engineers, and the public. The review was called by the National Earthquake Prediction Evaluation Council (NEPEC) and motivated by a recommendation from the Ad ...
... process of their generation focusing specifically on the hazard due to large events in the NMSZ. Our review solicited input from scientists, engineers, and the public. The review was called by the National Earthquake Prediction Evaluation Council (NEPEC) and motivated by a recommendation from the Ad ...
Tromp et al. 2010 - ShakeMovie Global
... We have developed a near real-time system for the simulation of global earthquakes. Prompted by a trigger from the Global Centroid Moment Tensor (CMT) Project, the system automatically calculates normal-mode synthetic seismograms for the Preliminary Reference Earth Model, and spectral-element synthe ...
... We have developed a near real-time system for the simulation of global earthquakes. Prompted by a trigger from the Global Centroid Moment Tensor (CMT) Project, the system automatically calculates normal-mode synthetic seismograms for the Preliminary Reference Earth Model, and spectral-element synthe ...
View Paper
... It is noted in Figure 2c that the peak floor acceleration profiles were quite low due to the very long (X = 2.0 and Z = 2.3 seconds) fundamental periods of the original building. Development of a Performance-Based Retrofit Scheme Two key steps were taken to improve the seismic performance of the bui ...
... It is noted in Figure 2c that the peak floor acceleration profiles were quite low due to the very long (X = 2.0 and Z = 2.3 seconds) fundamental periods of the original building. Development of a Performance-Based Retrofit Scheme Two key steps were taken to improve the seismic performance of the bui ...
Volcanic Eruptions, Real-Time Forecasting of
... increase in the stresses driving deformation, such as increasing magma pressure or flank deformation; (2) progressive material weakening (damage) of the volcanic edifice such that deformation rates increase at a constant driving stress; (3) an increased proportion of the brittle component of deformati ...
... increase in the stresses driving deformation, such as increasing magma pressure or flank deformation; (2) progressive material weakening (damage) of the volcanic edifice such that deformation rates increase at a constant driving stress; (3) an increased proportion of the brittle component of deformati ...
Cloud Computing for Natural Disasters and
... Recently, cloud computing technology has been used in Taiwan to develop a near real-time earthquake games competion. The project leaders, K. Chen, W. Liang, and Y. Yu have these to say about their project: “To better prepare the citizen for future impact of natural disasters, it is important to unde ...
... Recently, cloud computing technology has been used in Taiwan to develop a near real-time earthquake games competion. The project leaders, K. Chen, W. Liang, and Y. Yu have these to say about their project: “To better prepare the citizen for future impact of natural disasters, it is important to unde ...
Earthquake-Tsunami in South Jogjakarta Indonesia
... The Study area (Figure 1) is situated in the southern coast of Central Java, located in the southern coast of Jogjakarta Special Region (equivalent to provinces), divided from west to east consecutively into three districts, Kulon Progo, Bantul and Gunung Kidul respectively, which stretches along 11 ...
... The Study area (Figure 1) is situated in the southern coast of Central Java, located in the southern coast of Jogjakarta Special Region (equivalent to provinces), divided from west to east consecutively into three districts, Kulon Progo, Bantul and Gunung Kidul respectively, which stretches along 11 ...
Magnetic storm free ULF analysis in relation with earthquakes in
... In terms of the Tohoku earthquake, the phenomena (i.e. decrease of the cross correlation values) that appeared about 5 days before this grave event are observed at 8 stations, which are located about 2500 km away from the epicenter. The values (∼0.6; also see Fig. A6 in Appendix), which suggest seis ...
... In terms of the Tohoku earthquake, the phenomena (i.e. decrease of the cross correlation values) that appeared about 5 days before this grave event are observed at 8 stations, which are located about 2500 km away from the epicenter. The values (∼0.6; also see Fig. A6 in Appendix), which suggest seis ...
SEISMIC ASSESSMENT AND REHABILITATION OF
... Reinforced cores are another option for strengthening unreinforced masonry walls. A vertical core is drilled through the height of a wall and then filled with a grout to bond a conventional reinforcing bar, thus effectively causing the wall to behave as a reinforced masonry component. This method is ...
... Reinforced cores are another option for strengthening unreinforced masonry walls. A vertical core is drilled through the height of a wall and then filled with a grout to bond a conventional reinforcing bar, thus effectively causing the wall to behave as a reinforced masonry component. This method is ...
An empirical study of the distribution of earthquakes with respect to
... hypocenter it was necessary to determine the fault block first, then the rock unit. The fault blocks were determined with a ray-casting point-in polyhedron test, which is a simple extension of a well-known point-in-polygon ray-casting algorithm. In this test, a ray is cast vertically from the hypoce ...
... hypocenter it was necessary to determine the fault block first, then the rock unit. The fault blocks were determined with a ray-casting point-in polyhedron test, which is a simple extension of a well-known point-in-polygon ray-casting algorithm. In this test, a ray is cast vertically from the hypoce ...
Comparison of the Seismic Performance of a Base
... through site-specific response spectra developed for multiple levels of seismic hazard, developed by Fugro West [Geotechnical and Geologic Hazards Evaluation, 2005]. These spectra form the basis for development of a suite of seven earthquake acceleration records, each of which incorporate near-field ...
... through site-specific response spectra developed for multiple levels of seismic hazard, developed by Fugro West [Geotechnical and Geologic Hazards Evaluation, 2005]. These spectra form the basis for development of a suite of seven earthquake acceleration records, each of which incorporate near-field ...
Project Structural Conditions Survey and Seismic Vulnerability
... are “Life Safety” and “Immediate Occupancy”. Thornton Tomasetti has based its evaluation of this building on the “Life Safety” Performance objectives which is defined as “the building performance that includes significant damage to both structural and nonstructural components during a design earthqu ...
... are “Life Safety” and “Immediate Occupancy”. Thornton Tomasetti has based its evaluation of this building on the “Life Safety” Performance objectives which is defined as “the building performance that includes significant damage to both structural and nonstructural components during a design earthqu ...
Effects of Adding Structural Walls In The Bending Moments At
... 2- Compared to reinforced concrete shear walls, the steel shear wall is much lighter which can result in less weight to be carried by the columns and foundations as well as less seismic load due to reduced mass of the structure. 3- Compared to reinforced concrete shear walls, steel plate shear walls ...
... 2- Compared to reinforced concrete shear walls, the steel shear wall is much lighter which can result in less weight to be carried by the columns and foundations as well as less seismic load due to reduced mass of the structure. 3- Compared to reinforced concrete shear walls, steel plate shear walls ...
Uncertainty
... • In logic, first-order representations: – Can encode things more compactly than propositional ones. (E.g., rules of chess.) – Are applicable in new situations, where the set of objects is different. ...
... • In logic, first-order representations: – Can encode things more compactly than propositional ones. (E.g., rules of chess.) – Are applicable in new situations, where the set of objects is different. ...
Souces and scenarios for tsunami hazard assessment in the
... The second approach applies when sound hypotheses on tectonic lineaments and/or specific active and potentially tsunamigenic faults can be made: “source-based” approach: the fault areas are tessellated with elementary faults of suitable extension and with focal mechanism coinciding with that of the ...
... The second approach applies when sound hypotheses on tectonic lineaments and/or specific active and potentially tsunamigenic faults can be made: “source-based” approach: the fault areas are tessellated with elementary faults of suitable extension and with focal mechanism coinciding with that of the ...
8 AVOIDING SEISMIC IMPACTS
... of crustal movement observed over the last few years since the establishment of the extensive network of GPS geodetic stations in Japan. The GEONET network was started in 1993 and now has more than 1200 stations providing 24-hour continuous positioning observations at 30 second intervals. The Geogra ...
... of crustal movement observed over the last few years since the establishment of the extensive network of GPS geodetic stations in Japan. The GEONET network was started in 1993 and now has more than 1200 stations providing 24-hour continuous positioning observations at 30 second intervals. The Geogra ...
Advanced Retrofitting Methods and Techniques for RC
... now aware of how vulnerable their buildings are and may wish to undertake strengthening work. In India there are thousands of apartment buildings vulnerable to severe damage in a moderate or larger earthquake [1]. The seismic hazard in the areas, where those earthquakes have occurred, has been known ...
... now aware of how vulnerable their buildings are and may wish to undertake strengthening work. In India there are thousands of apartment buildings vulnerable to severe damage in a moderate or larger earthquake [1]. The seismic hazard in the areas, where those earthquakes have occurred, has been known ...
A first-order second-moment calculation for seismic hazard
... On the other hand, a recently implemented technical guideline prescribes the use of PSHA for designing critical structures under earthquake conditions (US Nuclear Regulatory Commission, 2007). Nevertheless, it is worth noting that the two analyses are associated with a specific algorithm, rather tha ...
... On the other hand, a recently implemented technical guideline prescribes the use of PSHA for designing critical structures under earthquake conditions (US Nuclear Regulatory Commission, 2007). Nevertheless, it is worth noting that the two analyses are associated with a specific algorithm, rather tha ...
Analyzing Anomalies in the Ionosphere Above Haiti Surrounding the
... several regional theoretical ionospheric models, allowing it to be computationally fast while maintaining accurate physics. It can produce electron densities for altitudes between 90 and 25,000km and is able to output the predicted electron density over time based on solar and geomagnetic parameters ...
... several regional theoretical ionospheric models, allowing it to be computationally fast while maintaining accurate physics. It can produce electron densities for altitudes between 90 and 25,000km and is able to output the predicted electron density over time based on solar and geomagnetic parameters ...
Vulnerability evaluation and seismic rehabilitation of steel building
... Because the technical document of the building was not exist, as built architectural plan is drawn and rapid assessment of existing condition is conducted. For qualitative vulnerability evaluation of this building, a suitable method is selected [6]. In this method, construction information such as e ...
... Because the technical document of the building was not exist, as built architectural plan is drawn and rapid assessment of existing condition is conducted. For qualitative vulnerability evaluation of this building, a suitable method is selected [6]. In this method, construction information such as e ...
1570 Ferrara earthquake
The 1570 Ferrara earthquake struck the Italian city of Ferrara on November 16 and 17, 1570. After the initial shocks, an earthquake swarm continued for four years, with over 2000 aftershocks concentrated from November 1570 to February 1571.The same area was struck, centuries later, by another major earthquake of comparable intensity.The disaster destroyed half the city, permanently marked many of the buildings left standing, and directly contributed to – but was not the sole cause of – a long-term decline of the city lasting until the 19th century.The earthquake caused the first documented episode of soil liquefaction in the Po Valley, and one of the oldest occurrences of the event known outside of paleoseismology. It led to the establishment of an earthquake observatory which published to very high regard, and the drafting of some of the first-known building designs based on a scientific seismic-resistant approach.