Change of crustal gravitational potential energy in the Taiwan
... Eurasian Plate has given rise to the Taiwan mountain-building and produced numerous earthquakes. Among the earthquakes, the 1999 Chi-Chi earthquake is the largest one recorded in the century. In this study, we examine the crustal gravitational potential energy (GPE) change in the Taiwan orogen cause ...
... Eurasian Plate has given rise to the Taiwan mountain-building and produced numerous earthquakes. Among the earthquakes, the 1999 Chi-Chi earthquake is the largest one recorded in the century. In this study, we examine the crustal gravitational potential energy (GPE) change in the Taiwan orogen cause ...
Damage identification of a 3D full scale steel
... actual damage due to earthquakes can provide important information on the operating state and structural safety of the structures concerned. The work described herein has been performed as part of two European projects [3, 4] where a series of vibration experiments followed the application of pseudo ...
... actual damage due to earthquakes can provide important information on the operating state and structural safety of the structures concerned. The work described herein has been performed as part of two European projects [3, 4] where a series of vibration experiments followed the application of pseudo ...
Seismic resilience of a hospital system
... Redundancy: is the extent to which alternative elements, systems or other measures exist, that are substitutable, i.e. capable of satisfying functional requirements in the event of disruption, degradation or loss of functionality. The mathematical formulation of the alternative redundant systems and ...
... Redundancy: is the extent to which alternative elements, systems or other measures exist, that are substitutable, i.e. capable of satisfying functional requirements in the event of disruption, degradation or loss of functionality. The mathematical formulation of the alternative redundant systems and ...
6th March 2017 Physical Geography Exam Questions
... FROM 2015 - 6 (c) ‘Distinctive landforms result from different glacial processes.’ Illustrate this statement with reference to one landform of erosion and one landform of deposition. [8 marks] ...
... FROM 2015 - 6 (c) ‘Distinctive landforms result from different glacial processes.’ Illustrate this statement with reference to one landform of erosion and one landform of deposition. [8 marks] ...
Vortex Tectonics: The Primary Factors Which
... activity in a steady progressive upward trend over a period of at least forty years. The increase easily seems to be at least threefold and, after all due quibbling about the adequacies of the statistical samples, a strong case can be made for a fourfold increase in earthquake and volcanic activity. ...
... activity in a steady progressive upward trend over a period of at least forty years. The increase easily seems to be at least threefold and, after all due quibbling about the adequacies of the statistical samples, a strong case can be made for a fourfold increase in earthquake and volcanic activity. ...
Dissipative Bracing-Based Seismic Retrofit of R/C
... with a “gap” element and a “hook” element, aimed at disconnecting the device when stressed in tension, and at stopping it when the maximum displacement in compression is reached, respectively [13-14, 22-23]. 2.4. DB-based Retrofit Intervention Proposal The choice of the DB system as seismic retrofit ...
... with a “gap” element and a “hook” element, aimed at disconnecting the device when stressed in tension, and at stopping it when the maximum displacement in compression is reached, respectively [13-14, 22-23]. 2.4. DB-based Retrofit Intervention Proposal The choice of the DB system as seismic retrofit ...
Seismic evaluation and strengthening of reinforced concrete
... The lateral force determined for strength related checks needs to be modified for reduced useable life. The useable life factor U, is to be multiplied to the lateral force (base shear) for new building as specified in IS: 1893-2002 (Part – 1). U will be determined as U = (Trem /Tdes )0.5 where Trem ...
... The lateral force determined for strength related checks needs to be modified for reduced useable life. The useable life factor U, is to be multiplied to the lateral force (base shear) for new building as specified in IS: 1893-2002 (Part – 1). U will be determined as U = (Trem /Tdes )0.5 where Trem ...
4. Adoption of Amendment to Berkeley Building
... such components, that supports more than 30 percent of the total area of the structure’s floor(s) and roof(s) has been reduced more than 20 percent from its pre-damaged condition, and the remaining capacity of such affected elements with respect to all dead and live loads is less than 75 percent of ...
... such components, that supports more than 30 percent of the total area of the structure’s floor(s) and roof(s) has been reduced more than 20 percent from its pre-damaged condition, and the remaining capacity of such affected elements with respect to all dead and live loads is less than 75 percent of ...
Post-earthquake seismic reflection survey, Christchurch, New Zealand
... Line 1 was the first line recorded during the survey and it is located along the Pacific Ocean beach on the east side of the city (Figure 6). It was 8 km in length. Recording this line had some challenges with soft sand, wave noise and tides. The interpreted seismic line from Line 1 is shown in Figu ...
... Line 1 was the first line recorded during the survey and it is located along the Pacific Ocean beach on the east side of the city (Figure 6). It was 8 km in length. Recording this line had some challenges with soft sand, wave noise and tides. The interpreted seismic line from Line 1 is shown in Figu ...
Bathymetry and Topography Data
... There will be a minimal tsunami effect of the case 1 (M7.6) earthquake scenario in the Lingayen Gulf coast. Anticipation of the 1.6 m tsunami height (case 2: M8.4) in the inner bay should be planned for. No enormous tsunami inundation will happen in the case 2 earthquake scenario in Dagupan Ci ...
... There will be a minimal tsunami effect of the case 1 (M7.6) earthquake scenario in the Lingayen Gulf coast. Anticipation of the 1.6 m tsunami height (case 2: M8.4) in the inner bay should be planned for. No enormous tsunami inundation will happen in the case 2 earthquake scenario in Dagupan Ci ...
Relationship between displacement and velocity
... in the figure because the difference in spectrum density between small and big earthquakes is of interest here. The model of this study is consistent with other models in respect of assuming enhanced spectrum density in high-frequency range. But, the spectrum ratio in high frequency of this model is ...
... in the figure because the difference in spectrum density between small and big earthquakes is of interest here. The model of this study is consistent with other models in respect of assuming enhanced spectrum density in high-frequency range. But, the spectrum ratio in high frequency of this model is ...
Creeping along the Ismetpasa section of the North Anatolian fault
... are not known. However, it is thought that part of the ~50-km-long low slip section (b1.5 m) of the 1944 rupture to the east of Ismetpasa was re-ruptured by the 1951 earthquake [7,18,19,20]. Since the observation of an offset wall at the railway station in the town of Ismetpasa (Fig. 2), numerous me ...
... are not known. However, it is thought that part of the ~50-km-long low slip section (b1.5 m) of the 1944 rupture to the east of Ismetpasa was re-ruptured by the 1951 earthquake [7,18,19,20]. Since the observation of an offset wall at the railway station in the town of Ismetpasa (Fig. 2), numerous me ...
a study on characteristics of ground motion in permafrost
... The Qinghai-Tibet Plateau (QTP) is one of the most tectonically active areas of the world and also one of the most seismically active regions, a total of 33 Ms 6.0-6.9 earthquakes and 3 Ms 7.0-8.5 earthquakes have occurred since 1980 (Fig. 1). The west of Kunlun Mountain pass Ms 8.1 earthquake on No ...
... The Qinghai-Tibet Plateau (QTP) is one of the most tectonically active areas of the world and also one of the most seismically active regions, a total of 33 Ms 6.0-6.9 earthquakes and 3 Ms 7.0-8.5 earthquakes have occurred since 1980 (Fig. 1). The west of Kunlun Mountain pass Ms 8.1 earthquake on No ...
Balance of seismic moment in the Songpan
... region, eastern Tibet. We have investigated the evolution of strain energy along major faults in this region by comparing the accumulation and release of seismic moment. First, we calculated the slip rates on the Longmen Shan and other major faults in the region using a three-dimensional regional-sc ...
... region, eastern Tibet. We have investigated the evolution of strain energy along major faults in this region by comparing the accumulation and release of seismic moment. First, we calculated the slip rates on the Longmen Shan and other major faults in the region using a three-dimensional regional-sc ...
shear-wave splitting, new geophysics, and earthquake stress
... Time-delay: The time-delay between the arrivals of the two split shear-wave phases in seismic anisotropy. Timedelays above earthquakes are frequently normalised by path length to ms/km. Transverse isotropy: Transverse isotropy (strictly hexagonal symmetry) is the anisotropic symmetry system with fiv ...
... Time-delay: The time-delay between the arrivals of the two split shear-wave phases in seismic anisotropy. Timedelays above earthquakes are frequently normalised by path length to ms/km. Transverse isotropy: Transverse isotropy (strictly hexagonal symmetry) is the anisotropic symmetry system with fiv ...
Tsunamis
... 4. Safe. Stay at your safe evacuation spot until you hear the All-Clear Signal. Tsunamis are a series of waves that could last over a period of several hours—the first wave is not usually the largest. 5. Unsafe. If the water recedes unexpectedly, a tsunami that has been generated by a distant source ...
... 4. Safe. Stay at your safe evacuation spot until you hear the All-Clear Signal. Tsunamis are a series of waves that could last over a period of several hours—the first wave is not usually the largest. 5. Unsafe. If the water recedes unexpectedly, a tsunami that has been generated by a distant source ...
Specification for Buildings to be Built in Seismic Zones (2007
... Regarding the definition of irregular buildings whose design and construction should be avoided because of their unfavourable seismic behaviour, types of irregularities in plan and in elevation are given in Table 2.1 and relevant conditions are given in 2.3.2 below. 2.3.2. Conditions for Irregular B ...
... Regarding the definition of irregular buildings whose design and construction should be avoided because of their unfavourable seismic behaviour, types of irregularities in plan and in elevation are given in Table 2.1 and relevant conditions are given in 2.3.2 below. 2.3.2. Conditions for Irregular B ...
Seismicity and present-day tectonics of the Svalbard region
... seismograms indicate the relatively high rate of occurrence of small earthquakes in this region, a situation which has allowed us to map seismicity patterns accurately even though recording periods may be of limited duration. Note also the relatively low noise levels even though the gain settings fo ...
... seismograms indicate the relatively high rate of occurrence of small earthquakes in this region, a situation which has allowed us to map seismicity patterns accurately even though recording periods may be of limited duration. Note also the relatively low noise levels even though the gain settings fo ...
Earthquake triggering and large-scale geologic storage of
... This effect was first documented in the 1960s in Denver, Colorado when injection into a 3-km-deep well at the nearby Rocky Mountain Arsenal triggered earthquakes (9). Soon thereafter it was shown experimentally (10) at the Rangely oil field in western Colorado that earthquakes could be turned on and o ...
... This effect was first documented in the 1960s in Denver, Colorado when injection into a 3-km-deep well at the nearby Rocky Mountain Arsenal triggered earthquakes (9). Soon thereafter it was shown experimentally (10) at the Rangely oil field in western Colorado that earthquakes could be turned on and o ...
Segmentation of seismicity along the Himalayan Arc due to
... the Main Frontal Thrust (MFT). Figure 1b shows the variation of and evolutionary models (Seeber and Armbruster, 1981; Ni and Himalayan seismicity along the curved Himalayan arc in terms of Barazangi, 1984), the great and major earthquakes in the Himalaya occurrence frequency of earthquakes of magnit ...
... the Main Frontal Thrust (MFT). Figure 1b shows the variation of and evolutionary models (Seeber and Armbruster, 1981; Ni and Himalayan seismicity along the curved Himalayan arc in terms of Barazangi, 1984), the great and major earthquakes in the Himalaya occurrence frequency of earthquakes of magnit ...
Dynamic triggering: The effects of remote earthquakes on volcanoes
... as stream flow or water level changes after earthquakes [Miller, 2012, and references therein]. The mechanism also applies to volcanic systems, where the static reduction of normal stress may trigger magma ascent which eventually results in a volcanic eruption [Bonali, 2013; Diez et al., 2005; Nostr ...
... as stream flow or water level changes after earthquakes [Miller, 2012, and references therein]. The mechanism also applies to volcanic systems, where the static reduction of normal stress may trigger magma ascent which eventually results in a volcanic eruption [Bonali, 2013; Diez et al., 2005; Nostr ...
SLOPE FAILURES AND PALEOSEISMICITY, EFFINGHAM INLET,
... counting and erosion at the base of turbidity currents. These events are dated from the Effingham Inlet chronology, in years before 2000 AD, as: 54, 300, 606, 873, 920, 1189, 1215, and 1510. In addition, an interesting cluster of events in the two inlets occurred around 2100-2200 y BP. The record of ...
... counting and erosion at the base of turbidity currents. These events are dated from the Effingham Inlet chronology, in years before 2000 AD, as: 54, 300, 606, 873, 920, 1189, 1215, and 1510. In addition, an interesting cluster of events in the two inlets occurred around 2100-2200 y BP. The record of ...
12660004_COMPDYN_Final.doc (374Kb)
... Conventional capacity design strategy relies on the philosophy of “dissipation with degradation” as seismic energy is dissipated by inelastic deformation. Due to the reliance of this philosophy on inelastic deformations, this incurs heavy damage to the parent structure making it non-functional after ...
... Conventional capacity design strategy relies on the philosophy of “dissipation with degradation” as seismic energy is dissipated by inelastic deformation. Due to the reliance of this philosophy on inelastic deformations, this incurs heavy damage to the parent structure making it non-functional after ...
Chapter 5: EARTHQUAKE RISK
... The current Geoscience Australia (GA) study presents the most comprehensive and advanced earthquake risk assessment undertaken for any Australian city to date. It has focused on the economic losses associated with the building and contents damage caused by earthquake ground shaking, excluding the im ...
... The current Geoscience Australia (GA) study presents the most comprehensive and advanced earthquake risk assessment undertaken for any Australian city to date. It has focused on the economic losses associated with the building and contents damage caused by earthquake ground shaking, excluding the im ...
1880 Luzon earthquakes
The earthquakes of July 1880 in Luzon, the largest island of the Philippines, was one of the most destructive tremors on record in the history of the country. The shocks continued, with greater or less interruption, from the 14th to the 25th of the month, highlighted by three violent shaking events, which destroyed churches and other buildings, producing loss of life. Coinciding with the tectonic activity was an increased in volcanic activity in Taal Volcano in southwestern Luzon.The Luzon provinces of Manila, Cavite, Bulacan, Laguna, Pampanga, and Nueva Ecija, were the chief victims from the terrible convulsions with Manila and Laguna receiving the most damages. In many places, buildings were converted into shapeless heaps of ruins, and the materials of their prosperity buried beneath the rubbish.