Designing Buildings to Accommodate Earthquake Surface Fault
... The phenomenon of earthquake surface fault rupture is described in several publications, including Bonilla (1970), Sherard et al. (1974), Cole and Lade (1984), Bray (1990), Bray et al. (1994a-b), Lazarte et al. (1994), Bray (2001), Bray and Kelson (2006), and Bray (2009). A brief summary of the phen ...
... The phenomenon of earthquake surface fault rupture is described in several publications, including Bonilla (1970), Sherard et al. (1974), Cole and Lade (1984), Bray (1990), Bray et al. (1994a-b), Lazarte et al. (1994), Bray (2001), Bray and Kelson (2006), and Bray (2009). A brief summary of the phen ...
chapter 3 - Geophile.net
... * Rocks across a fault are stressed and bent elastically. Ultimately they fracture during an earthquake and the two sides straighten out, leaving them offset across the fault. 6. How is the distance to an earthquake determined? Knowing the velocity of travel of P- and S-waves, the difference betwe ...
... * Rocks across a fault are stressed and bent elastically. Ultimately they fracture during an earthquake and the two sides straighten out, leaving them offset across the fault. 6. How is the distance to an earthquake determined? Knowing the velocity of travel of P- and S-waves, the difference betwe ...
Earthquake Risk Assessment of Quetta
... throughout the history. One of these major earthquakes occurred on the early morning of 31 May 1935. The 1935 Quetta earthquake, with an estimated magnitude 7.7, was reported to last around three minutes. The epicentre of the earthquake was established to be 4-kilometres south-west of the town of Al ...
... throughout the history. One of these major earthquakes occurred on the early morning of 31 May 1935. The 1935 Quetta earthquake, with an estimated magnitude 7.7, was reported to last around three minutes. The epicentre of the earthquake was established to be 4-kilometres south-west of the town of Al ...
SOFT-STOREY BEHAVIOUR IN AN EARTHQUAKE and
... detailed place in Codes of Earthquakes Table1. Despite all this, still most of the constructions damaged suffer from this irregularity (Fig.3-4). As a result of investigation on this and other irregularities, it was observed that Codes of Earthquake are not sufficient, especially in Turkey. For this ...
... detailed place in Codes of Earthquakes Table1. Despite all this, still most of the constructions damaged suffer from this irregularity (Fig.3-4). As a result of investigation on this and other irregularities, it was observed that Codes of Earthquake are not sufficient, especially in Turkey. For this ...
Solutions to Notes for Section 3.3
... Logarithmic function-is the kind of function that Reverses the effect of an exponential function Open your books and look at p. 166 on the top Exponential (Section 3.2) Population vs. time ...
... Logarithmic function-is the kind of function that Reverses the effect of an exponential function Open your books and look at p. 166 on the top Exponential (Section 3.2) Population vs. time ...
Depth segmentation of the seismogenic
... Received 26 January 2011; accepted 2 February 2011; published 24 March 2011. ...
... Received 26 January 2011; accepted 2 February 2011; published 24 March 2011. ...
Logarithmic Scale - Macmillan Learning
... big is it” to “how much bigger is it than . . ?”. Establishing relative size requires some kind of standard for comparison, and Richter used the smallest possible earthquake detectable at that time. This eliminated decimal values smaller than one. In addition, using ratios allowed him to compare two ...
... big is it” to “how much bigger is it than . . ?”. Establishing relative size requires some kind of standard for comparison, and Richter used the smallest possible earthquake detectable at that time. This eliminated decimal values smaller than one. In addition, using ratios allowed him to compare two ...
Locating the Epicenter Lab
... the recording stations, can be determined. Circles drawn on a map from each of the seismic stations are then used to locate the epicenter. In addition, the seismic recordings can be used to determine the time at which the earthquake took place, and how powerful the earthquake was at its source. 1. I ...
... the recording stations, can be determined. Circles drawn on a map from each of the seismic stations are then used to locate the epicenter. In addition, the seismic recordings can be used to determine the time at which the earthquake took place, and how powerful the earthquake was at its source. 1. I ...
Notes on the earthquake of September 15, 1972
... The maximum intensity value associated with the September earthquake was barely over VI on the Modified Mercalli scale , well below the value of VIII generally regarded as the lower limit of serious damage to man-made structures. The mesoseismal area (the area enclosed by the maximum intensity isose ...
... The maximum intensity value associated with the September earthquake was barely over VI on the Modified Mercalli scale , well below the value of VIII generally regarded as the lower limit of serious damage to man-made structures. The mesoseismal area (the area enclosed by the maximum intensity isose ...
Kyrgyz Republic - Public Documents Profile Viewer
... It does not mean a 100-year earthquake will occur exactly once every 100 years. In fact, it is possible for an earthquake of any return period to occur more than once in the same year, or to appear in consecutive years, or not to happen at all over a long period of time. ...
... It does not mean a 100-year earthquake will occur exactly once every 100 years. In fact, it is possible for an earthquake of any return period to occur more than once in the same year, or to appear in consecutive years, or not to happen at all over a long period of time. ...
The Bullas (Murcia, SE Spain)
... infill panels). Approximately 10% of the houses suffered moderate non-structural damage and 30% of the houses were slightly damaged. The total damage has been estimated at 1.200.000 euros. Other towns suffered less damage. In Las Terreras (intensity VI, Figure 2a), slight cracks were observed in man ...
... infill panels). Approximately 10% of the houses suffered moderate non-structural damage and 30% of the houses were slightly damaged. The total damage has been estimated at 1.200.000 euros. Other towns suffered less damage. In Las Terreras (intensity VI, Figure 2a), slight cracks were observed in man ...
The August 23, 2011 Magnitude 5.8 Virginia Earthquake in the
... A magnitude 5.8 earthquake occurred in Louisa County, Virginia at 1:51 p.m., Tuesday, August 23, 2011. The earthquake resulted in a Modified Mercalli Intensity of VII around the epicenter (USGS 2012a) and was the largest earthquake to occur in the state since the 1897 Giles County earthquake. There ...
... A magnitude 5.8 earthquake occurred in Louisa County, Virginia at 1:51 p.m., Tuesday, August 23, 2011. The earthquake resulted in a Modified Mercalli Intensity of VII around the epicenter (USGS 2012a) and was the largest earthquake to occur in the state since the 1897 Giles County earthquake. There ...
FOURTH GRADE EARTHQUAKES
... Some earthquakes shake everything (high intensity), and others are not felt at all (low intensity). In these labs, we introduce two ways to measure this shaking: the Richter scale and the Modified Mercalli scale. The Richter scale is a mathematical measurement of the intensity of the ground shaking, ...
... Some earthquakes shake everything (high intensity), and others are not felt at all (low intensity). In these labs, we introduce two ways to measure this shaking: the Richter scale and the Modified Mercalli scale. The Richter scale is a mathematical measurement of the intensity of the ground shaking, ...
Earthquake Generation
... Mercalli Scale: uses intensity of damage (measurement of earthquake s effect on buildings & people), but this diminishes away from epicenter – different intensities reported for the same earthquake. Problems: Buildings are of variable construction and geological foundation. Different Mercalli intens ...
... Mercalli Scale: uses intensity of damage (measurement of earthquake s effect on buildings & people), but this diminishes away from epicenter – different intensities reported for the same earthquake. Problems: Buildings are of variable construction and geological foundation. Different Mercalli intens ...
Basic Earthquake Coverage and Adjusting Issues
... components overhead Power transmission lines Underground utilities Uneven sidewalks and road surfaces ...
... components overhead Power transmission lines Underground utilities Uneven sidewalks and road surfaces ...
AuSIS Module: Earthquake Location
... For this activity, we assume that students have already been introduced to the different types of waves, at least P-waves and S-waves (see AuSIS Module: Seismic Waves). This activity is an online java applet that goes through the steps of earthquake location and computation of an earthquake’s magnit ...
... For this activity, we assume that students have already been introduced to the different types of waves, at least P-waves and S-waves (see AuSIS Module: Seismic Waves). This activity is an online java applet that goes through the steps of earthquake location and computation of an earthquake’s magnit ...
Revelation of 5.12 Quake, Sichuan, ChinaPart I Background of
... sea waves), which can travel thousands of miles undiminished before bringing destruction to low-lying coastal areas and around bays and harbors. A tsunami can be created directly by underwater ground motion during earthquakes or by landslides, including underwater landslides. Tsunamis can travel tho ...
... sea waves), which can travel thousands of miles undiminished before bringing destruction to low-lying coastal areas and around bays and harbors. A tsunami can be created directly by underwater ground motion during earthquakes or by landslides, including underwater landslides. Tsunamis can travel tho ...
EGU2012-7956
... function, suggesting that during the period since 1979 the fault plane, that ruptured in the 1973 earthquake, has been tending to re-couple and re-lock gradually with some strain having rebuilt-up. (2) Since 1999 the rate of relative left-lateral displacement/deformation at the fault far-fields on b ...
... function, suggesting that during the period since 1979 the fault plane, that ruptured in the 1973 earthquake, has been tending to re-couple and re-lock gradually with some strain having rebuilt-up. (2) Since 1999 the rate of relative left-lateral displacement/deformation at the fault far-fields on b ...
EARTHQUAKE DAMAGE – INTENSITY RELATIONSHIP
... building were design and built with very low seismic load before they were suffering the West Sumatra 30S’09 earthquake. After the large earthquakes in the West Sumatra region, a new version of the Indonesian earthquake code is released in 2010. A further increase in the maximum PGA is declared fant ...
... building were design and built with very low seismic load before they were suffering the West Sumatra 30S’09 earthquake. After the large earthquakes in the West Sumatra region, a new version of the Indonesian earthquake code is released in 2010. A further increase in the maximum PGA is declared fant ...
earthquakes
... • Strong ground shaking lasted 300 seconds (compared with about 10 - 20 seconds for the 1995 Kobe, Japan quake). • But, the ground shaking did not cause the disaster this time; the tsunami did. ...
... • Strong ground shaking lasted 300 seconds (compared with about 10 - 20 seconds for the 1995 Kobe, Japan quake). • But, the ground shaking did not cause the disaster this time; the tsunami did. ...
Lesson 7-2 - TeacherWeb
... • size of the area of the fault that moves • average distance moved by fault blocks, and • rigidity of rocks in the fault zone. ...
... • size of the area of the fault that moves • average distance moved by fault blocks, and • rigidity of rocks in the fault zone. ...
Fulltext PDF
... quakes have bigger wave amplitude than those of smaller earthquakes; and (b) for a given earthquake, seismograms at farther distances have smaller wave amplitude than those at close distances. These prompted him to propose the now commonly used magnitude scale, the Richter Scale. It is obtained from ...
... quakes have bigger wave amplitude than those of smaller earthquakes; and (b) for a given earthquake, seismograms at farther distances have smaller wave amplitude than those at close distances. These prompted him to propose the now commonly used magnitude scale, the Richter Scale. It is obtained from ...
Earthquake Cornell Notes
... it has nothing to do with the tides on the ocean. It is a huge wave caused by an earthquake under the ocean. Tsunamis can be tens of feet high when they hit the shore and can do enormous damage to the coastline. Seiches are like small tsunamis. They occur on lakes that are shaken by the earthquake a ...
... it has nothing to do with the tides on the ocean. It is a huge wave caused by an earthquake under the ocean. Tsunamis can be tens of feet high when they hit the shore and can do enormous damage to the coastline. Seiches are like small tsunamis. They occur on lakes that are shaken by the earthquake a ...
Document
... Total destruction – everything is destroyed. Lines of sight and level distorted. Objects thrown into the air. The ground moves in waves or ripples. Large amounts of rock move position. Landscape altered, or leveled by several meters. In some cases, even the routes of rivers are changed. ...
... Total destruction – everything is destroyed. Lines of sight and level distorted. Objects thrown into the air. The ground moves in waves or ripples. Large amounts of rock move position. Landscape altered, or leveled by several meters. In some cases, even the routes of rivers are changed. ...
2013 Bohol earthquake
The 2013 Bohol earthquake occurred on October 15 at 8:12 a.m. (PST) in Bohol, an island province located in Central Visayas, Philippines. The magnitude of the earthquake was recorded at Mw 7.2, with epicenter 6 kilometres (3.7 mi) S 24° W of Sagbayan, and its depth of focus was 12 kilometres (7.5 mi). It affected the whole Central Visayas region, particularly Bohol and Cebu. The quake was felt in the whole Visayas area and as far as Masbate island in the north and Cotabato provinces in southern Mindanao.According to official reports by the National Disaster Risk Reduction and Management Council (NDRRMC), 222 were reported dead, 8 were missing, and 976 people were injured. In all, more than 73,000 structures were damaged, of which more than 14,500 were totally destroyed.It was the deadliest earthquake in the Philippines in 23 years. The energy released by the quake was equivalent to 32 Hiroshima bombs. Previously, Bohol was also hit by an earthquake on February 8, 1990 that damaged several buildings and caused a tsunami.On November 7, just 3 weeks after the quake, Super Typhoon Haiyan (Yolanda) struck the region. Although the storm's eye missed the area affected by the earthquake, it sent some 40,000 Boholanos still living in temporary shelters back to evacuation centers and disrupted relief efforts in the province.