Jamaica Seismic Network
... • The Unit operates the Jamaica Seismograph Network, Jamaica Strong Motion Network and the GPS Monitoring Network. • Archives and records all earthquake related data for Jamaica. • Collaborates/conducts relative research on Jamaica seismicity and tectonics. • Performs national and site specific seis ...
... • The Unit operates the Jamaica Seismograph Network, Jamaica Strong Motion Network and the GPS Monitoring Network. • Archives and records all earthquake related data for Jamaica. • Collaborates/conducts relative research on Jamaica seismicity and tectonics. • Performs national and site specific seis ...
Chapter 8- Earthquakes
... is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain period of time • Seismic gap- an area along a fault where relatively few earthquakes have occurred recently but where strong earthquakes have occurred in the past ...
... is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain period of time • Seismic gap- an area along a fault where relatively few earthquakes have occurred recently but where strong earthquakes have occurred in the past ...
EarthquakesBC
... few minutes before the first wave crest arrives. People often go out to explore the beach or gather fish or shells at that time. ...
... few minutes before the first wave crest arrives. People often go out to explore the beach or gather fish or shells at that time. ...
Earthquakes
... few minutes before the first wave crest arrives. People often go out to explore the beach or gather fish or shells at that time. ...
... few minutes before the first wave crest arrives. People often go out to explore the beach or gather fish or shells at that time. ...
EART 118 Seismotectonics
... Strength increases with depth in the brittle region due to the increasing normal stress, and then decreases with depth in the ductile region due to increasing temperature. Hence strength is highest at the brittle-ductile transition. Strength decreases rapidly below this transition, so the lithospher ...
... Strength increases with depth in the brittle region due to the increasing normal stress, and then decreases with depth in the ductile region due to increasing temperature. Hence strength is highest at the brittle-ductile transition. Strength decreases rapidly below this transition, so the lithospher ...
Chapter 19: Earthquakes - Richmond County Schools
... of damage caused by a quake and is measured by the Modified Mercalli Scale – Uses roman numerals – Higher the number the greater the damage ...
... of damage caused by a quake and is measured by the Modified Mercalli Scale – Uses roman numerals – Higher the number the greater the damage ...
Earthquake Quiz - cohort6science
... _______________11. The type of stress that pushes rock together causing a collision is tension. _______________12. The focus is the point on the Earth’s surface where an earthquake begins. _______________13. Compression is a type of stress that causes the Earth’s landforms to change shape. _________ ...
... _______________11. The type of stress that pushes rock together causing a collision is tension. _______________12. The focus is the point on the Earth’s surface where an earthquake begins. _______________13. Compression is a type of stress that causes the Earth’s landforms to change shape. _________ ...
Earthquake Hazards
... temporarily take some of the properties of a liquid during an earthquake. This is called liquefaction. For example, San Francisco’s Marina district sits on a landfill which was used to extend the city into San Francisco Bay. In the 1989 Loma Prieta earthquake this landfill liquefied, shaking buildin ...
... temporarily take some of the properties of a liquid during an earthquake. This is called liquefaction. For example, San Francisco’s Marina district sits on a landfill which was used to extend the city into San Francisco Bay. In the 1989 Loma Prieta earthquake this landfill liquefied, shaking buildin ...
Resource from animation found at: http://www.iris.edu/hq/inclass
... period for over a minute. The period of oscillation, or shaking is the time between two peaks. In the bedrock seismic waves oscillated with a 1-second period but slowed to a 2-second period with higher amplitude as the waves reverberated in the basi Before earthquake codes, buildings were not always ...
... period for over a minute. The period of oscillation, or shaking is the time between two peaks. In the bedrock seismic waves oscillated with a 1-second period but slowed to a 2-second period with higher amplitude as the waves reverberated in the basi Before earthquake codes, buildings were not always ...
Seismic Waves - Portland State University
... described by their magnitude. The magnitude measures how much the ground shakes. There are other ways to measure the size of an earthquake, for instance we can measure how long the fault was that slipped during the earthquake. Using borehole geophysical measurements in conjunction with laboratory st ...
... described by their magnitude. The magnitude measures how much the ground shakes. There are other ways to measure the size of an earthquake, for instance we can measure how long the fault was that slipped during the earthquake. Using borehole geophysical measurements in conjunction with laboratory st ...
Reference answers 2.(a) (i) Richter Scale (1 mark) (ii) Plate X
... (b) Earthquake takes place under the ocean / the sea bed quakes / vertical displacement / gigantic waves are generated (2 marks) (c) More developed region Æ Earthquake-proof design is adopted in most buildings – isolation device, the use of strong building materials Æ More knowledgeable about earthq ...
... (b) Earthquake takes place under the ocean / the sea bed quakes / vertical displacement / gigantic waves are generated (2 marks) (c) More developed region Æ Earthquake-proof design is adopted in most buildings – isolation device, the use of strong building materials Æ More knowledgeable about earthq ...
name________________________
... A. BLAMING SOMEONE ELSE FOR WHAT YOU DID B. THE MOVEMENTS OF ROCK ALONG A FAULT C. THE VIBRATION OF CRUST D. NONE OF THESE 15. IN REGARD TO WAVES, HERTZ IS THE SAME AS A. VELOCITY B. FREQUENCY 16. DRAW IN AND LABEL ALL FOUR BASIC LAYERS OF THE EARTH ...
... A. BLAMING SOMEONE ELSE FOR WHAT YOU DID B. THE MOVEMENTS OF ROCK ALONG A FAULT C. THE VIBRATION OF CRUST D. NONE OF THESE 15. IN REGARD TO WAVES, HERTZ IS THE SAME AS A. VELOCITY B. FREQUENCY 16. DRAW IN AND LABEL ALL FOUR BASIC LAYERS OF THE EARTH ...
Section 19.2 and 19.3 – Seismometer, Seismograms, and Scales
... seismic stations located at different distances from an earthquake’s epicenter. • P-waves and S-waves recorded on seismograms from more distant facilities are farther apart than waves recorded on seismograms at stations closer to the epicenter. ...
... seismic stations located at different distances from an earthquake’s epicenter. • P-waves and S-waves recorded on seismograms from more distant facilities are farther apart than waves recorded on seismograms at stations closer to the epicenter. ...
Seismic tomography
... spherical shell model of the Earth that was most consistent with the observed travel times from seismic sources to seismic stations that had been accumulated in the previous 80 years of seismology. Note that the model is “layered” and laterally averaged over the whole Earth within layers and so no l ...
... spherical shell model of the Earth that was most consistent with the observed travel times from seismic sources to seismic stations that had been accumulated in the previous 80 years of seismology. Note that the model is “layered” and laterally averaged over the whole Earth within layers and so no l ...
Earthquakes
... twelve interconnected landmasses called tectonic plates. What are the major plates that affect the U.S? - North American, Juan De Fuca, and the pacific plate. ...
... twelve interconnected landmasses called tectonic plates. What are the major plates that affect the U.S? - North American, Juan De Fuca, and the pacific plate. ...
Earthquakes Review
... boundary between the crust and the mantle due to the change of speed of seismic waves? ...
... boundary between the crust and the mantle due to the change of speed of seismic waves? ...
Presentation
... Moment Magnitude = Mw = log Mo/1.5 – 10.7 In earthquake machine, this means magnitude is directly related to fault displacement ...
... Moment Magnitude = Mw = log Mo/1.5 – 10.7 In earthquake machine, this means magnitude is directly related to fault displacement ...
Preface
... The 2011 Mw 9.0 off the Pacific coast of Tohoku Earthquake, the greatest earthquake in the modern history of Japan and the fourth largest earthquake of the world in the era of instrumental seismology, occurred along the plate interface east of northeastern Japan. Slip area of this great earthquake e ...
... The 2011 Mw 9.0 off the Pacific coast of Tohoku Earthquake, the greatest earthquake in the modern history of Japan and the fourth largest earthquake of the world in the era of instrumental seismology, occurred along the plate interface east of northeastern Japan. Slip area of this great earthquake e ...
Earthquake Locations/Terminology Elastic Rebound Theory Seismic
... S-Waves: Second fastest, side to side, travel through solids Surface Waves: Slowest waves, very destructive, role on surface ...
... S-Waves: Second fastest, side to side, travel through solids Surface Waves: Slowest waves, very destructive, role on surface ...
Earthquake Notes for PPT
... What is the RING of FIRE? __________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ Earthquakes What is a fault? _______________________________________ ...
... What is the RING of FIRE? __________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ Earthquakes What is a fault? _______________________________________ ...
Critical Facility Seismic Mitigation
... Building Code, which did not contain many of the seismic protection provisions found in the 1973 building code. In 1971, the San Fernando Earthquake destroyed most of the building, caused three deaths on-site, and forced the evacuation of the structure. When the hospital was replaced in 1988, it was ...
... Building Code, which did not contain many of the seismic protection provisions found in the 1973 building code. In 1971, the San Fernando Earthquake destroyed most of the building, caused three deaths on-site, and forced the evacuation of the structure. When the hospital was replaced in 1988, it was ...
Ch. 5 - Power Point Review
... Name three of the five methods that can be used to either retrofit or build a building that is earthquake resistance ...
... Name three of the five methods that can be used to either retrofit or build a building that is earthquake resistance ...
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.