Determining Distance to Epicenter
... becomes too great and a break occurs in the crust. The crust quickly jumps a few inches or as much as 10 feet. This sudden movement along the fault generates shock waves which travel through the Earth. Different types of shock waves are generated, they are called P waves, S waves, and L waves. These ...
... becomes too great and a break occurs in the crust. The crust quickly jumps a few inches or as much as 10 feet. This sudden movement along the fault generates shock waves which travel through the Earth. Different types of shock waves are generated, they are called P waves, S waves, and L waves. These ...
Background on earthquakes in eastern Canada
... This region has a low to moderate level of seismicity when compared to the more active seismic zones to the east, along the Ottawa River and in Quebec. Over the past 30 years, on average, 2 to 3 magnitude 2.5 or larger earthquakes have been recorded in the southern Great Lakes region. By comparison, ...
... This region has a low to moderate level of seismicity when compared to the more active seismic zones to the east, along the Ottawa River and in Quebec. Over the past 30 years, on average, 2 to 3 magnitude 2.5 or larger earthquakes have been recorded in the southern Great Lakes region. By comparison, ...
Earthquakes in Eastern Canada - Comptes
... most susceptible to mass movements, to define and upgrade buildings most at risk, and to educate the population about earthquake preparedness. ...
... most susceptible to mass movements, to define and upgrade buildings most at risk, and to educate the population about earthquake preparedness. ...
Spatial distribution of earthquakes off the east coast of the Kanto
... The 2011 off the Pacific coast of Tohoku Earthquake whose magnitude Mj was 9.0, determined by the Japan Meteorological Agency (JMA), occurred near the east coast of Honshu, Japan on March 11, 2011 in the subduction zone of the Pacific plate (PAC). The rupture spread away both north and south and a l ...
... The 2011 off the Pacific coast of Tohoku Earthquake whose magnitude Mj was 9.0, determined by the Japan Meteorological Agency (JMA), occurred near the east coast of Honshu, Japan on March 11, 2011 in the subduction zone of the Pacific plate (PAC). The rupture spread away both north and south and a l ...
Proceedings
... In the year 2004, Nabire district of Papua was hit twice by strong earthquakes, namely on 6 February 2004 and on 26 November 2004. Both earthquakes have caused collapsed of buildings and casualties. On Wednesday 20 February 2008, western Sumatera was hit by a shallow major (strong) earthquake with t ...
... In the year 2004, Nabire district of Papua was hit twice by strong earthquakes, namely on 6 February 2004 and on 26 November 2004. Both earthquakes have caused collapsed of buildings and casualties. On Wednesday 20 February 2008, western Sumatera was hit by a shallow major (strong) earthquake with t ...
aftershock risks such as those demonstrated by the recent events in
... Conference on Earthquake Engineering to increase the awareness of aftershock risks. This paper provides an overview of the topics that are discussed in the session. The topics can be divided into three broad categories: (1) aftershock hazard, (2) change in structural fragility/vulnerability due to a ...
... Conference on Earthquake Engineering to increase the awareness of aftershock risks. This paper provides an overview of the topics that are discussed in the session. The topics can be divided into three broad categories: (1) aftershock hazard, (2) change in structural fragility/vulnerability due to a ...
Earthquake early warning for southern Iberia: AP wave threshold
... 1988], and in the 20th century, it was seismically very quiet as compared to other historical periods. The area of San Vicente Cape (Figure 1a) has generated large shocks, including the damaging 1755 Lisbon earthquake (Imax = X), and, more recently, the Ms = 8.1 1969 S. Vicente Cape earthquake, both ...
... 1988], and in the 20th century, it was seismically very quiet as compared to other historical periods. The area of San Vicente Cape (Figure 1a) has generated large shocks, including the damaging 1755 Lisbon earthquake (Imax = X), and, more recently, the Ms = 8.1 1969 S. Vicente Cape earthquake, both ...
Response to the Great East Japan by General Insurance
... - Insurance claims by the Great Hanshin-Awaji earthquake (M 7.3) in 1995 amounted to JPY 78.3 billion (See Attachment 2) - Although the Great Hanshin-Awaji earthquake was the most devastating and the largest earthquake in Japanese recorded history, it took about 2 months to pay over 90 % of the said ...
... - Insurance claims by the Great Hanshin-Awaji earthquake (M 7.3) in 1995 amounted to JPY 78.3 billion (See Attachment 2) - Although the Great Hanshin-Awaji earthquake was the most devastating and the largest earthquake in Japanese recorded history, it took about 2 months to pay over 90 % of the said ...
Earthquake Disaster Simulation in Immersive 3D Environment
... is most appropriate in regions with frequent earthquakes, while the response may be highly inappropriate resulting in avoidable casualties in regions with infrequent earthquakes. This is due to better training of the human mind to recognise an earthquake and determine safety actions during an earthq ...
... is most appropriate in regions with frequent earthquakes, while the response may be highly inappropriate resulting in avoidable casualties in regions with infrequent earthquakes. This is due to better training of the human mind to recognise an earthquake and determine safety actions during an earthq ...
Seminar on b-value (PDF 0.2 MB)
... the surface-wave magnitude, Ms. If data include also intermediate- and deep-focus events, body-wave magnitude, mb, has to be used. When processing catalogs with large events (M≥7), we prefer to work with moment magnitudes, MW, to circumvent the saturation effects. In local catalogs (mining areas wat ...
... the surface-wave magnitude, Ms. If data include also intermediate- and deep-focus events, body-wave magnitude, mb, has to be used. When processing catalogs with large events (M≥7), we prefer to work with moment magnitudes, MW, to circumvent the saturation effects. In local catalogs (mining areas wat ...
Advances in Natural and Applied Sciences
... volcanic eruptions, landslides and avalanches. (Solano and Scaruzzo, 2013). The earthquake is known as the most common natural disaster, because many earthquakes are registered with different dimensions during decades which caused many damages. Due to the earthquakes registered, the rate of mortalit ...
... volcanic eruptions, landslides and avalanches. (Solano and Scaruzzo, 2013). The earthquake is known as the most common natural disaster, because many earthquakes are registered with different dimensions during decades which caused many damages. Due to the earthquakes registered, the rate of mortalit ...
0. Introduction
... at: http://www.geol.binghamton.edu/faculty/jones. It runs on a Windows 95, 98, 2000, XP, or NT environment. Macintosh users running Virtual PC (Connectix, http://www.connectix.com/) or SoftWindows (FWB Software, http://www.fwb.com/) can also operate the SeisVolE program on their computers. Both the ...
... at: http://www.geol.binghamton.edu/faculty/jones. It runs on a Windows 95, 98, 2000, XP, or NT environment. Macintosh users running Virtual PC (Connectix, http://www.connectix.com/) or SoftWindows (FWB Software, http://www.fwb.com/) can also operate the SeisVolE program on their computers. Both the ...
Chapter 4: Igneous Rocks: Product of Earth`s Internal Fire
... and stress accumulate in surrounding rock. In the laboratory, geologists have observed that friction on many rock surfaces decreases greatly once the surfaces start to slip. This effect, called velocity-weakening behavior, allows slip to accelerate and to release all the strain of the rock. Incorpor ...
... and stress accumulate in surrounding rock. In the laboratory, geologists have observed that friction on many rock surfaces decreases greatly once the surfaces start to slip. This effect, called velocity-weakening behavior, allows slip to accelerate and to release all the strain of the rock. Incorpor ...
CENTRAL AND EASTERN US NETWORK
... CEUSN: Helping Understand the Causes of Earthquakes Even a moderate earthquake beneath a major city in the central and eastern United States may have a severe impact on surface structures, yet the causes of seismicity in this region are poorly understood compared to earthquakes in the tectonically a ...
... CEUSN: Helping Understand the Causes of Earthquakes Even a moderate earthquake beneath a major city in the central and eastern United States may have a severe impact on surface structures, yet the causes of seismicity in this region are poorly understood compared to earthquakes in the tectonically a ...
Seismic interaction and delayed triggering along the North Anatolian
... all other reported observations of remote triggering, which show an activation either synchronized with the passage of the seismic waves or occurring soon after. All reported observations of immediate triggering, however, are restricted to small events [Gomberg et al., 2001; Hill and Prejean, 2006]. ...
... all other reported observations of remote triggering, which show an activation either synchronized with the passage of the seismic waves or occurring soon after. All reported observations of immediate triggering, however, are restricted to small events [Gomberg et al., 2001; Hill and Prejean, 2006]. ...
Research on the Earthquake Disaster Thematic Electric Map
... Earthquake is the rapid breakdown of the Earth’s interior longitudinal and shear waves generated by a complex interaction of movement, and within a certain range caused by the earthquake ground dynamic phenomenon. The center location of the earthquake is called earthquake source. Vertical projection ...
... Earthquake is the rapid breakdown of the Earth’s interior longitudinal and shear waves generated by a complex interaction of movement, and within a certain range caused by the earthquake ground dynamic phenomenon. The center location of the earthquake is called earthquake source. Vertical projection ...
2008 Sichuan earthquake
The 2008 Sichuan earthquake or the Great Sichuan earthquake, measured at 8.0 Msand 7.9 Mw, and occurred at 02:28:01 PM China Standard Time at epicenter (06:28:01 UTC)on Monday, May 12 in Sichuan province, killed 69,197 people and left 18,222 missing.It is also known as the Wenchuan earthquake (Chinese: 汶川大地震; pinyin: Wènchuān dà dìzhèn; literally: ""Great Wenchuan earthquake""), after the location of the earthquake's epicenter, Wenchuan County, Sichuan. The epicenter was 80 kilometres (50 mi) west-northwest of Chengdu, the provincial capital, with a focal depth of 19 km (12 mi).The earthquake was also felt in nearby countries and as far away as both Beijing and Shanghai—1,500 km (930 mi) and 1,700 km (1,060 mi) away—where office buildings swayed with the tremor. Strong aftershocks, some exceeding magnitude 6, continued to hit the area even months after the main quake, causing new casualties and damage.Official figures (as of July 21, 2008 12:00 CST) stated that 69,197 were confirmed dead, including 68,636 in Sichuan province, and 374,176 injured, with 18,222 listed as missing. The earthquake left about 4.8 million people homeless, though the number could be as high as 11 million. Approximately 15 million people lived in the affected area. It was the deadliest earthquake to hit China since the 1976 Tangshan earthquake, which killed at least 240,000 people, and the strongest in the country since the 1950 Chayu earthquake, which registered at 8.5 on the Richter magnitude scale. It is the 21st deadliest earthquake of all time. On November 6, 2008, the central government announced that it would spend 1 trillion RMB (about US $146.5 billion) over the next three years to rebuild areas ravaged by the earthquake, as part of the Chinese economic stimulus program.