Relocation of large intermediate-depth earthquakes in the Vrancea
... (Fig. 1; see Frohlich, 2006). The depths of these earthquakes range from 60 to 160 km, and their epicenters are concentrated in an area of 20 × 85 km in the Vrancea region. Based on the regularity of past large earthquakes, the predominant focal mechanism is of a thrust type with a NWSE compressiona ...
... (Fig. 1; see Frohlich, 2006). The depths of these earthquakes range from 60 to 160 km, and their epicenters are concentrated in an area of 20 × 85 km in the Vrancea region. Based on the regularity of past large earthquakes, the predominant focal mechanism is of a thrust type with a NWSE compressiona ...
Evaluation of seismic stability for mud houses based on
... Seismic Performance Improvement Strategies Stiffeners: Stiffeners may be plates, sections or members which help in stiffening beams, walls etc. in order to minimize deformations. Stiffeners can prolong the life of a present temporary rural hut at a cost, 60 to 70 % less than new construction. If a 3 ...
... Seismic Performance Improvement Strategies Stiffeners: Stiffeners may be plates, sections or members which help in stiffening beams, walls etc. in order to minimize deformations. Stiffeners can prolong the life of a present temporary rural hut at a cost, 60 to 70 % less than new construction. If a 3 ...
On the onset of ionospheric precursors 40 min before strong
... Increases of the ionospheric total electron content (TEC) were recently reported just before strong earthquakes [see Cahyadi and Heki, 2013; Heki, 2011; Heki and Enomoto, 2013] including the 2011 Tohoku-Oki earthquake. The TEC enhancements were considered to be possibly linked to the preparatory pha ...
... Increases of the ionospheric total electron content (TEC) were recently reported just before strong earthquakes [see Cahyadi and Heki, 2013; Heki, 2011; Heki and Enomoto, 2013] including the 2011 Tohoku-Oki earthquake. The TEC enhancements were considered to be possibly linked to the preparatory pha ...
Seismicity in the northeast area of Izu Peninsula, Japan, comparing
... 4. Three-dimensional velocity structure Kantoh et al. (1996) determined a detailed 3D seismic velocity structure of the upper crust down to 15 km depth beneath the Hakone volcano and its surrounding area using local and explosion seismic data. They used 2082 P-wave arrival times from 192 local earth ...
... 4. Three-dimensional velocity structure Kantoh et al. (1996) determined a detailed 3D seismic velocity structure of the upper crust down to 15 km depth beneath the Hakone volcano and its surrounding area using local and explosion seismic data. They used 2082 P-wave arrival times from 192 local earth ...
Spatial clustering and repeating of seismic events observed along
... window 1s before the P wave to 5s after S wave recorded at least one station, we identified a total of 46 similar event sequences with the number of events per sequence ranging from 2 to 130. These comprised 21 doublet and 25 multiplets. The total number of earthquakes in the 46 sequences is 328, ma ...
... window 1s before the P wave to 5s after S wave recorded at least one station, we identified a total of 46 similar event sequences with the number of events per sequence ranging from 2 to 130. These comprised 21 doublet and 25 multiplets. The total number of earthquakes in the 46 sequences is 328, ma ...
Analyzing Anomalies in the Ionosphere Above Haiti Surrounding the
... to light recently with research into how the ionosphere can be used to predict seismic activity. Being part of the upper atmosphere, the ionosphere ranges from approximately 85 to 900km above the Earth’s surface and is filled with electrons and other charged particles. One way to characterize the io ...
... to light recently with research into how the ionosphere can be used to predict seismic activity. Being part of the upper atmosphere, the ionosphere ranges from approximately 85 to 900km above the Earth’s surface and is filled with electrons and other charged particles. One way to characterize the io ...
Satellite thermal infrared anomalies associated with strong
... This study investigated the selected intermediatedepth seismic events presented in Table 1. Earthquake data for four earthquakes with moment magnitude Mw between 5.9 and 7.4 and focal depth between 91 km and 131 km are provided by the National Institute of Earth Physics Catalog and the United States ...
... This study investigated the selected intermediatedepth seismic events presented in Table 1. Earthquake data for four earthquakes with moment magnitude Mw between 5.9 and 7.4 and focal depth between 91 km and 131 km are provided by the National Institute of Earth Physics Catalog and the United States ...
THE NATURE OF SEISMICITY PATTERNS BEFORE LARGE
... in the Kamchatka, Kurile and Japan regions and identified several zones which had not experienced a large earthquake for a long t1me. These zones were considered to be candidate sites of major earthquakes in the future. In fact, several major earthquakes including the 1968 Tokachi-Oki, Japan earthqu ...
... in the Kamchatka, Kurile and Japan regions and identified several zones which had not experienced a large earthquake for a long t1me. These zones were considered to be candidate sites of major earthquakes in the future. In fact, several major earthquakes including the 1968 Tokachi-Oki, Japan earthqu ...
Repairing and rebuilding houses affected by the Canterbury
... on the Port Hills. Significant shaking damage was also observed in the hill suburbs. Other significant aftershocks, most notably on 13 June 2011 and 23 December 2011, again caused liquefaction in the low-lying areas worst affected in the 4 September 2010 and 22 February 2011 events, and further shak ...
... on the Port Hills. Significant shaking damage was also observed in the hill suburbs. Other significant aftershocks, most notably on 13 June 2011 and 23 December 2011, again caused liquefaction in the low-lying areas worst affected in the 4 September 2010 and 22 February 2011 events, and further shak ...
Earthquakes: Risk, Detection, Warning, and Research
... The 1994 Northridge (CA) earthquake caused as much as $26 billion (in 2005 dollars) in damage and was one of the costliest natural disasters to strike the United States. One study of the damage caused by a hypothetical magnitude 7.8 earthquake along the San Andreas Fault in southern California proje ...
... The 1994 Northridge (CA) earthquake caused as much as $26 billion (in 2005 dollars) in damage and was one of the costliest natural disasters to strike the United States. One study of the damage caused by a hypothetical magnitude 7.8 earthquake along the San Andreas Fault in southern California proje ...
evaluation of ground motion intensities from induced earthquakes
... States (CEUS), which is believed to be a result of anthropogenic activities. This is a cause for concern due to the potential damage that shaking from these earthquakes could cause. With this as motivation, we investigate whether the intensity of the ground shaking produced by such earthquakes diffe ...
... States (CEUS), which is believed to be a result of anthropogenic activities. This is a cause for concern due to the potential damage that shaking from these earthquakes could cause. With this as motivation, we investigate whether the intensity of the ground shaking produced by such earthquakes diffe ...
earthquakes and earth`s interior
... directions to relieve built-up stress, thereby releasing massive amounts of energy in Haiti. Because it was a land-based quake, no major tsunami was generated like the famous one triggered by the Boxing Day earthquake under the Indian Ocean in 2004. In 1946 a more powerful 8.1 quake struck the north ...
... directions to relieve built-up stress, thereby releasing massive amounts of energy in Haiti. Because it was a land-based quake, no major tsunami was generated like the famous one triggered by the Boxing Day earthquake under the Indian Ocean in 2004. In 1946 a more powerful 8.1 quake struck the north ...
Seismic Behavior Assessment of The Historical Tomb of Sheikh Shahab- J
... vacillator seismically active area in Azerbaijan and is expected the most important seismic events on the future of the province occur due to reactivation of this fault (Zare and Shahpasand Zade 1995). Therefore, the most significant structural trends in the province would be introduced in the follo ...
... vacillator seismically active area in Azerbaijan and is expected the most important seismic events on the future of the province occur due to reactivation of this fault (Zare and Shahpasand Zade 1995). Therefore, the most significant structural trends in the province would be introduced in the follo ...
Evaluation of structural irregularities based on architectural
... Turkey is an earthquake country and it is expected that it can deal with earthquakes in the future, by managing future collapses of structures (Mertol and Mertol, 2002). The structural problems caused by an earthquake are generally seen as an engineering problem even though they can be eliminated th ...
... Turkey is an earthquake country and it is expected that it can deal with earthquakes in the future, by managing future collapses of structures (Mertol and Mertol, 2002). The structural problems caused by an earthquake are generally seen as an engineering problem even though they can be eliminated th ...
Climate change and Urban Vulnerability in Africa
... His inspiration was the apparent magnitude scale used in astronomy to describe the brightness of stars and other celestial objects. Richter arbitrarily chose a magnitude 0 event to be an earthquake that would show a maximum combined horizontal displacement of 1 µm (0.00004 in) on a seismogram record ...
... His inspiration was the apparent magnitude scale used in astronomy to describe the brightness of stars and other celestial objects. Richter arbitrarily chose a magnitude 0 event to be an earthquake that would show a maximum combined horizontal displacement of 1 µm (0.00004 in) on a seismogram record ...
Evidence for Deep Magma Injection Beneath Lake Tahoe, Nevada
... northwest shore of Lake Tahoe and defines a 7x5 km planar structure striking N30°W and dipping 50°NE between 29–33 km depth (Fig. 1; fig. S1). A total of 1611 earthquakes were located in the swarm (sum of the moment magnitude of all events is Mw 3.1), and the 1179 best located events are shown (see ...
... northwest shore of Lake Tahoe and defines a 7x5 km planar structure striking N30°W and dipping 50°NE between 29–33 km depth (Fig. 1; fig. S1). A total of 1611 earthquakes were located in the swarm (sum of the moment magnitude of all events is Mw 3.1), and the 1179 best located events are shown (see ...
Earthquake Disasters in China
... Yunnan, Hebei, Taiwan, and other eastern provinces. First, according to the geologic structure, the western inland area can be divided into Xinjiang seismotectonic zone and Qinghai–Tibet seismotectonic zone. Xinjiang seismotectonic zone: Earthquakes in this area are related to the movements of the h ...
... Yunnan, Hebei, Taiwan, and other eastern provinces. First, according to the geologic structure, the western inland area can be divided into Xinjiang seismotectonic zone and Qinghai–Tibet seismotectonic zone. Xinjiang seismotectonic zone: Earthquakes in this area are related to the movements of the h ...
Other Time Dependencies - Working Group on California
... Greatest excess of pairs at 50-150 km, 55-85 years. Rate in exactly that range significantly higher than synthetics (wrong way to do statistics), but about average for maximum in some range that size. Don’t reject null hypothesis. ...
... Greatest excess of pairs at 50-150 km, 55-85 years. Rate in exactly that range significantly higher than synthetics (wrong way to do statistics), but about average for maximum in some range that size. Don’t reject null hypothesis. ...
Kyrgyz Republic - Public Documents Profile Viewer
... (National Geophysical Data Center, NOAA), doi:10.7289/V5TD9V7K; and J. Daniell and A. Schaefer, “Eastern Europe and Central Asia Region Earthquake Risk Assessment Country and Province Profiling,” final report to GFDRR, 2014. Damage estimates for all historical events have been inflated to 2013 US$. ...
... (National Geophysical Data Center, NOAA), doi:10.7289/V5TD9V7K; and J. Daniell and A. Schaefer, “Eastern Europe and Central Asia Region Earthquake Risk Assessment Country and Province Profiling,” final report to GFDRR, 2014. Damage estimates for all historical events have been inflated to 2013 US$. ...
Science: Geology Earthquakes and Plate Tectonics
... the last year or last month, and try looking for smaller-magnitude quakes. This last query should yield some interesting results. ...
... the last year or last month, and try looking for smaller-magnitude quakes. This last query should yield some interesting results. ...
Perturbation of earthquake probability for interacting faults
... by Parsons (2005), the nucleation point of future earthquakes is unknown. We do not know how the tectonic stress is distributed and often have no information about asperities. What is typically known in advance is that the next earthquake is expected to nucleate somewhere along the fault plane. The ...
... by Parsons (2005), the nucleation point of future earthquakes is unknown. We do not know how the tectonic stress is distributed and often have no information about asperities. What is typically known in advance is that the next earthquake is expected to nucleate somewhere along the fault plane. The ...
EARTHQUAKE VULNERABILITY MAPPING OF RESIDENTIAL BUILDINGS BASED ON
... Earthquake is defined as sudden motion or trembling of the earth caused by release of strain accumulated within or along the edge of Earth’s tectonic plate. The energy released from that process is seismic vibration radiating in the earth and felt as earthquake after reaching the Earth’s surface (Ba ...
... Earthquake is defined as sudden motion or trembling of the earth caused by release of strain accumulated within or along the edge of Earth’s tectonic plate. The energy released from that process is seismic vibration radiating in the earth and felt as earthquake after reaching the Earth’s surface (Ba ...
Relationship between Modified Mercalli Intensity and peak ground
... [4,5] eastwards of Myanmar. For the Mandalay earthquake, the work of Brown [6] revealed an MMI in the range of III-IX spreading out more than 900 km from the epicenter to central Thailand (Figure 1). In case of the Tounggyi earthquake, the MMI is in the range of V-IX within the area covering approxi ...
... [4,5] eastwards of Myanmar. For the Mandalay earthquake, the work of Brown [6] revealed an MMI in the range of III-IX spreading out more than 900 km from the epicenter to central Thailand (Figure 1). In case of the Tounggyi earthquake, the MMI is in the range of V-IX within the area covering approxi ...
Chapter 8 Next Generation Sunshine State Standards
... The major tool introduces and builds science concepts as a coherent whole. It provides opportunities to students to explore why a scientific idea is important and in which contexts that a science idea can be useful. In other words, the major tool helps students learn the science concepts in depth. A ...
... The major tool introduces and builds science concepts as a coherent whole. It provides opportunities to students to explore why a scientific idea is important and in which contexts that a science idea can be useful. In other words, the major tool helps students learn the science concepts in depth. A ...
Smoothed Seismicity Rates - Working Group on California
... smoothed seismicity is predictive of future earthquakes (Kagan and Jackson, 2000; Kafka 2007). It works for small earthquakes and for M>6 (Kafka, 2007). An upper magnitude limit for applicability has not been demonstrated. ...
... smoothed seismicity is predictive of future earthquakes (Kagan and Jackson, 2000; Kafka 2007). It works for small earthquakes and for M>6 (Kafka, 2007). An upper magnitude limit for applicability has not been demonstrated. ...
April 2015 Nepal earthquake
The April 2015 Nepal earthquake (also known as the Gorkha earthquake) killed more than 9,000 people and injured more than 23,000. It occurred at 11:56 NST on 25 April, with a magnitude of 7.8Mw or 8.1Ms and a maximum Mercalli Intensity of IX (Violent). Its epicenter was east of the district of Lamjung, and its hypocenter was at a depth of approximately 8.2 km (5.1 mi). It was the worst natural disaster to strike Nepal since the 1934 Nepal–Bihar earthquake.The earthquake triggered an avalanche on Mount Everest, killing at least 19, making April 25, 2015 the deadliest day on the mountain in history. The earthquake triggered another huge avalanche in the Langtang valley, where 250 people were reported missing.Hundreds of thousands of people were made homeless with entire villages flattened, across many districts of the country. Centuries-old buildings were destroyed at UNESCO World Heritage sites in the Kathmandu Valley, including some at the Kathmandu Durbar Square, the Patan Durbar Square, the Bhaktapur Durbar Square, the Changu Narayan Temple and the Swayambhunath Stupa. Geophysicists and other experts had warned for decades that Nepal was vulnerable to a deadly earthquake, particularly because of its geology, urbanization, and architecture.Continued aftershocks occurred throughout Nepal at the intervals of 15–20 minutes, with one shock reaching a magnitude of 6.7 on 26 April at 12:54:08 NST. The country also had a continued risk of landslides.A major aftershock occurred on 12 May 2015 at 12:51 NST with a moment magnitude (Mw) of 7.3. The epicenter was near the Chinese border between the capital of Kathmandu and Mt. Everest. More than 200 people were killed and more than 2,500 were injured by this aftershock.