Tomography of the 2011 Iwaki earthquake (M 7.0) and Fukushima
... earthquake (M 7.0) and the Fukushima nuclear power plant are determined by inverting a large number of high-quality arrival times with both the finite-frequency and ray tomography methods. The Iwaki earthquake and its aftershocks mainly occurred in a boundary zone with strong variations in seismic v ...
... earthquake (M 7.0) and the Fukushima nuclear power plant are determined by inverting a large number of high-quality arrival times with both the finite-frequency and ray tomography methods. The Iwaki earthquake and its aftershocks mainly occurred in a boundary zone with strong variations in seismic v ...
seismic retrofitting of reinforced concrete - IITK
... and social relevance. Most of the Italian building stock is vulnerable to seismic action even if located in areas that have long been considered of high seismic hazard. During the past thirty years moderate to severe earthquakes have occurred in Italy at intervals of 5 to 10 years. Such events have ...
... and social relevance. Most of the Italian building stock is vulnerable to seismic action even if located in areas that have long been considered of high seismic hazard. During the past thirty years moderate to severe earthquakes have occurred in Italy at intervals of 5 to 10 years. Such events have ...
Where do earthquakes appear?
... • There are several different kinds of seismic waves, and they all move in different ways. The two main types of waves are body waves and surface waves. • Body waves can travel through the Earth's inner layers, but surface waves can only move along the surface of the planet like ripples on water. Ea ...
... • There are several different kinds of seismic waves, and they all move in different ways. The two main types of waves are body waves and surface waves. • Body waves can travel through the Earth's inner layers, but surface waves can only move along the surface of the planet like ripples on water. Ea ...
the january 25th, 1999 earthquake in the coffee growing region of
... of the faults of the Romeral Faulting System, particularly to Silvia-Pijao ; however, the rather complex faulting environment in the area do not allow a clear identification of the particular alignment that gave birth to this earthquake. The focal mechanisms show a strike slip left lateral fault pla ...
... of the faults of the Romeral Faulting System, particularly to Silvia-Pijao ; however, the rather complex faulting environment in the area do not allow a clear identification of the particular alignment that gave birth to this earthquake. The focal mechanisms show a strike slip left lateral fault pla ...
Pele 1: Earthquakes! Vocabulary
... c. sidekick d. seismic 4. when two or more moving objects bump or crash into each other with force a. decide b. collide c. collect d. collage 5. to suddenly fall down or give way a. collapse b. collide c. collect d. collage 6. without stopping; ongoing a. continent b. continuous c. contextual d. con ...
... c. sidekick d. seismic 4. when two or more moving objects bump or crash into each other with force a. decide b. collide c. collect d. collage 5. to suddenly fall down or give way a. collapse b. collide c. collect d. collage 6. without stopping; ongoing a. continent b. continuous c. contextual d. con ...
Presentation
... on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. ...
... on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. ...
Diapositiva 1
... National University (OVSICORI-UNA) is a University Research Institute dedicated to research of volcanoes, earthquakes and other tectonic processes, in order to find useful applications that help society to mitigate the adverse effects of these events to economic and social development. In 1984, the ...
... National University (OVSICORI-UNA) is a University Research Institute dedicated to research of volcanoes, earthquakes and other tectonic processes, in order to find useful applications that help society to mitigate the adverse effects of these events to economic and social development. In 1984, the ...
Introducción a la Geofísica ( )
... previous exercise. The values given in the table for various depths in the Earth are converted to depth-profiles of K, µ and ν, as in the following table: ...
... previous exercise. The values given in the table for various depths in the Earth are converted to depth-profiles of K, µ and ν, as in the following table: ...
Chapter C1 Natural Hazards
... (source: http://www.weather.gov.hk/gts/equake/mms_e.htm) a. This is a qualitative measure of earthquake effects based primarily upon the extent of damages, loss of life and the physical feeling of people. b. Earthquake intensity depends on: (1) ______________________________________________ (2) ____ ...
... (source: http://www.weather.gov.hk/gts/equake/mms_e.htm) a. This is a qualitative measure of earthquake effects based primarily upon the extent of damages, loss of life and the physical feeling of people. b. Earthquake intensity depends on: (1) ______________________________________________ (2) ____ ...
Seismic modeling study of the Earth`s deep crust
... a zero-offset ray-tracing algorithm to obtain the location of the geological interfaces. A first estimation of the seismic velocities is obtained from prior geological and geophysical information of the study area. The P-wave seismic-velocity values are taken from various sources (e.g., Ponziani et ...
... a zero-offset ray-tracing algorithm to obtain the location of the geological interfaces. A first estimation of the seismic velocities is obtained from prior geological and geophysical information of the study area. The P-wave seismic-velocity values are taken from various sources (e.g., Ponziani et ...
Tree Rings and Earthquakes - DigitalCommons@USU
... 3 Future Research Needs and Challenges One of the principal challenges in using tree rings to identify earthquakes is finding trees that have recorded the event. Many studies have focused on “eventresponse” trees, which exhibit obvious damage and are located within a few meters of a fault scarp. Th ...
... 3 Future Research Needs and Challenges One of the principal challenges in using tree rings to identify earthquakes is finding trees that have recorded the event. Many studies have focused on “eventresponse” trees, which exhibit obvious damage and are located within a few meters of a fault scarp. Th ...
Seismic Monitoring - K-UTEC
... Figure 4 shows the development of the seismicity over the last years of a carnallitite mining field. This field was mined between 1982 and 1991. The deformation characteristics of carnallitite-salt and the rather difficult geomechanical situation of the field resulted in a dangerous weakening and al ...
... Figure 4 shows the development of the seismicity over the last years of a carnallitite mining field. This field was mined between 1982 and 1991. The deformation characteristics of carnallitite-salt and the rather difficult geomechanical situation of the field resulted in a dangerous weakening and al ...
File
... • S Waves After being deformed from side to side, the rock springs back to its original position and S waves are created. S waves, or shear waves, are the second-fastest seismic waves. • Surface Waves Surface waves move along the Earth’s surface and produce motion mostly in the upper few kilometers ...
... • S Waves After being deformed from side to side, the rock springs back to its original position and S waves are created. S waves, or shear waves, are the second-fastest seismic waves. • Surface Waves Surface waves move along the Earth’s surface and produce motion mostly in the upper few kilometers ...
heading for text page - Institution of Professional Engineers Samoa
... earthquake. As these ductile elements yield they absorb energy without loss of strength that would lead to collapse of the building. While some of the cover has fallen off, none of the reinforcing has broken, and the concrete inside the reinforcing cage is intact, so this beam can still carry load. ...
... earthquake. As these ductile elements yield they absorb energy without loss of strength that would lead to collapse of the building. While some of the cover has fallen off, none of the reinforcing has broken, and the concrete inside the reinforcing cage is intact, so this beam can still carry load. ...
A Report on Upgraded Seismic Monitoring Stations in Myanmar
... evident to this day. More recently, the 5 January 1991 M L 7.1 Tagaung earthquake caused moderate destruction to the surrounding area. Myanmar’s largest earthquake in recent history occurred on the Kyaukkyan fault in 1912, with an estimated magnitude of 8.0. This event caused severe damage in the ci ...
... evident to this day. More recently, the 5 January 1991 M L 7.1 Tagaung earthquake caused moderate destruction to the surrounding area. Myanmar’s largest earthquake in recent history occurred on the Kyaukkyan fault in 1912, with an estimated magnitude of 8.0. This event caused severe damage in the ci ...
Earthquake engineering
Earthquake engineering or Seismic engineering is a branch of engineering that searches for ways to make structures, such as buildings and bridges, resistant to earthquake damage. Earthquake engineer, better known as a seismic engineer aim to develop building techniques that will prevent any damage in a minor quake and avoid serious damage or collapse in a major shake. It is the scientific field concerned with protecting society, the natural environment, and the man-made environment from earthquakes by limiting the seismic risk to socio-economically acceptable levels. Traditionally, it has been narrowly defined as the study of the behavior of structures and geo-structures subject to seismic loading; it is considered as a subset of both structural and geotechnical engineering. However, the tremendous costs experienced in recent earthquakes have led to an expansion of its scope to encompass disciplines from the wider field of civil engineering, mechanical engineering and from the social sciences, especially sociology, political science, economics and finance. The main objectives of earthquake engineering are: Foresee the potential consequences of strong earthquakes on urban areas and civil infrastructure. Design, construct and maintain structures to perform at earthquake exposure up to the expectations and in compliance with building codes.A properly engineered structure does not necessarily have to be extremely strong or expensive. It has to be properly designed to withstand the seismic effects while sustaining an acceptable level of damage.