What is a wave?
... " And damaging quakes rupture for > several sec " P, S, and surface waves have not separated, but ...
... " And damaging quakes rupture for > several sec " P, S, and surface waves have not separated, but ...
Seismic Zone at East Africa Rift: Insights Into the Geothermal Potential
... The EARS has been explored for potential geothermal resources for some time (Tongue, 1991; Tongue et al, 1994; Simuyi, 2009; Wamalwa et al., 2013; Young et al., 1991). These potential geothermal resources are thought to collocate with active and passive volcanic centers along the extent of the EARS ...
... The EARS has been explored for potential geothermal resources for some time (Tongue, 1991; Tongue et al, 1994; Simuyi, 2009; Wamalwa et al., 2013; Young et al., 1991). These potential geothermal resources are thought to collocate with active and passive volcanic centers along the extent of the EARS ...
On the History of Inner Core Discovery - Beck-Shop
... Non-seismologists often think about probing the Earth in terms of seismic profiling with controlled sources where reflection and refraction principles can be used. However, probing the Earth’s deepest shells using high-quality earthquake waves (passive seismology) was not easy, particularly in the e ...
... Non-seismologists often think about probing the Earth in terms of seismic profiling with controlled sources where reflection and refraction principles can be used. However, probing the Earth’s deepest shells using high-quality earthquake waves (passive seismology) was not easy, particularly in the e ...
Earthquake (地震)
... Dept. of Civil & Structural Engineering, The Hong Kong Polytechnic University 2 ...
... Dept. of Civil & Structural Engineering, The Hong Kong Polytechnic University 2 ...
Distribution Characteristics of Geohazards Induced by the Lushan
... ABSTRACT: The Lushan Earthquake induced a large number of geohazards. They are widely distributed and caused serious damages. The basic characteristics, formation mechanisms and typical cases of geohazards induced by Lushan Earthquake are described, and compares to the relationships of Lushan and We ...
... ABSTRACT: The Lushan Earthquake induced a large number of geohazards. They are widely distributed and caused serious damages. The basic characteristics, formation mechanisms and typical cases of geohazards induced by Lushan Earthquake are described, and compares to the relationships of Lushan and We ...
? AN EVALUATION OF CHINESE ANNUAL
... The second strategy considers the spatial distribution of seismicity over the period 1900-1989. even though it is always possible for a large earthquake to occur where none has been seen before. CSB prediction is only marginally better than background-based random prediction. In comparison with back ...
... The second strategy considers the spatial distribution of seismicity over the period 1900-1989. even though it is always possible for a large earthquake to occur where none has been seen before. CSB prediction is only marginally better than background-based random prediction. In comparison with back ...
A new seismically constrained subduction interface model for
... and network design, these data are uniquely well suited for recording deep earthquakes along the deeper Wadati-Benioff zone but insufficient for characterizing the subduction megathrust through the region. Earthquakes were located within a regional velocity model also developed by Syracuse et al. [20 ...
... and network design, these data are uniquely well suited for recording deep earthquakes along the deeper Wadati-Benioff zone but insufficient for characterizing the subduction megathrust through the region. Earthquakes were located within a regional velocity model also developed by Syracuse et al. [20 ...
Wind Waves - Net Texts
... Some of the damage done by storms is from storm surge. Water piles up at a shoreline as storm winds push waves into the coast. Storm surge may raise sea level as much as 7.5 m (25 ft), which can be devastating in a shallow land area when winds, waves, and rain are intense. A wild video of “Storm Sur ...
... Some of the damage done by storms is from storm surge. Water piles up at a shoreline as storm winds push waves into the coast. Storm surge may raise sea level as much as 7.5 m (25 ft), which can be devastating in a shallow land area when winds, waves, and rain are intense. A wild video of “Storm Sur ...
Anomalous soil radon fluctuations – signal of earthquakes in Nepal
... presented in figure 4(a, b). During 4-month observation period from March 1 to June 30, 2015, the variation of local meteorological parameters (such as temperature, pressure, humidity and rainfall, shown in figure 4(a, b) lower panels) did not change significantly so that they can introduce seasonal ch ...
... presented in figure 4(a, b). During 4-month observation period from March 1 to June 30, 2015, the variation of local meteorological parameters (such as temperature, pressure, humidity and rainfall, shown in figure 4(a, b) lower panels) did not change significantly so that they can introduce seasonal ch ...
Hola Feature Articles
... builds at the boundaries of these plates due to friction. The sudden release of this energy generates earthquakes. In contrast, the Moon is a relatively rigid body. It lacks oceans, volcanoes, and tectonic plates. Nevertheless, the Apollo seismic sensors were able to record a number of natural event ...
... builds at the boundaries of these plates due to friction. The sudden release of this energy generates earthquakes. In contrast, the Moon is a relatively rigid body. It lacks oceans, volcanoes, and tectonic plates. Nevertheless, the Apollo seismic sensors were able to record a number of natural event ...
Geochemistry, Geophysics, Geosystems - ePrints Soton
... Constrains on the Kalehe earthquakes are provided by global seismic stations with locations of 30 earthquakes in 2002 provided by the USGS/NEIC catalog (supplemental information Table S1) and moment tensor inversion performed on two earthquakes by Craig et al. [2011] (Table 1). These data show that ...
... Constrains on the Kalehe earthquakes are provided by global seismic stations with locations of 30 earthquakes in 2002 provided by the USGS/NEIC catalog (supplemental information Table S1) and moment tensor inversion performed on two earthquakes by Craig et al. [2011] (Table 1). These data show that ...
Mapping the Liquefaction Susceptible Zones in Parts of
... RRSSC-ISRO, IIT Campus, Kharagpur – 721302. * MWRD, Space Application Centre, Ahmedabad-380015 ...
... RRSSC-ISRO, IIT Campus, Kharagpur – 721302. * MWRD, Space Application Centre, Ahmedabad-380015 ...
TROMINO : the New Generation of Seismic Noise Acquisition Systems
... Seismic noise exists everywhere on the Earth surface and is mostly produced by wind and sea waves. Also industries and vehicle traffic locally generate seismic noise, although essentially at high frequencies (some Hz), which are quickly attenuated. Seismic ground noise acts as an excitation function ...
... Seismic noise exists everywhere on the Earth surface and is mostly produced by wind and sea waves. Also industries and vehicle traffic locally generate seismic noise, although essentially at high frequencies (some Hz), which are quickly attenuated. Seismic ground noise acts as an excitation function ...
Short-lived tectonic switch mechanism for long-term
... Triggered volcanic activity spans a range of timescales and distances (Hill et al., 2002; Delle Donne et al., 2010). In the immediate or short term associated with passing seismic waves, mechanical perturbation of the magma reservoir may result in processes such as rectified diffusion, gas exsolutio ...
... Triggered volcanic activity spans a range of timescales and distances (Hill et al., 2002; Delle Donne et al., 2010). In the immediate or short term associated with passing seismic waves, mechanical perturbation of the magma reservoir may result in processes such as rectified diffusion, gas exsolutio ...
A Blind Normal Fault beneath the Taipei Basin in Northern Taiwan
... velocity model from the real earth structure. Determination of earthquake hypocenters using the JHD technique is an iteration process, with an iteration consisting of two steps. Station corrections are determined in the first step of iteration with current earthquake hypocenters and origin times. In ...
... velocity model from the real earth structure. Determination of earthquake hypocenters using the JHD technique is an iteration process, with an iteration consisting of two steps. Station corrections are determined in the first step of iteration with current earthquake hypocenters and origin times. In ...
Seismic intensity map and typical structural damage of 2010 Ms 7.1
... Scale (GB/T 17742-2008), the survey results yield the seismic intensity map shown by the solid lines in Fig. 2. The earthquake area is located on the Qinghai–Tibetan Plateau at an average altitude of about 4,200 meters. This is a low population density region occupied mainly by nomadic people who ha ...
... Scale (GB/T 17742-2008), the survey results yield the seismic intensity map shown by the solid lines in Fig. 2. The earthquake area is located on the Qinghai–Tibetan Plateau at an average altitude of about 4,200 meters. This is a low population density region occupied mainly by nomadic people who ha ...
estimation of input seismic energy by means
... The same authors state that the dispersion of results proves that their formula is not suitable for long duration ground motions with a short predominant period or for motions with a large peak connected with a long pulse. In the former case the results are too small and in the later too large. In t ...
... The same authors state that the dispersion of results proves that their formula is not suitable for long duration ground motions with a short predominant period or for motions with a large peak connected with a long pulse. In the former case the results are too small and in the later too large. In t ...
Online Social Networks (OSNs)
... Automated means of collecting data rather than surveys (on which traditional social media research had to depend) ...
... Automated means of collecting data rather than surveys (on which traditional social media research had to depend) ...
Earthquake distribution in southern Tibet and its tectonic implications
... following criteria to obtain as many events as possible: (1) the events have a clear P phase, (2) the number of P wave phases exceed four, and (3) at least one S phase is picked. As a consequence, a total of 885 local events were located by the SEL method. [14] Next, these 885 events were relocated ...
... following criteria to obtain as many events as possible: (1) the events have a clear P phase, (2) the number of P wave phases exceed four, and (3) at least one S phase is picked. As a consequence, a total of 885 local events were located by the SEL method. [14] Next, these 885 events were relocated ...
Resistivity structure across Itoigawa-Shizuoka tectonic line and its implications
... Fig. 7. (a) A two-dimensional resistivity model and the seismicity along the profile. The resistivity model used TM mode only where electric field is across the assumed strike direction of N30◦ E. Altitude of the sites and geological belts are also shown. (b) Seismic tomography result over the Japan ...
... Fig. 7. (a) A two-dimensional resistivity model and the seismicity along the profile. The resistivity model used TM mode only where electric field is across the assumed strike direction of N30◦ E. Altitude of the sites and geological belts are also shown. (b) Seismic tomography result over the Japan ...
comparison of earthquake locations determined with
... most seismic stations and earthquakes used in this study are near the south coast, because Ryall and Bennett (1968) suggest the presence of a great crustal thickness and possible deep faults between the north coast and Kilauea, and because Hill (1969) reports a large scatter in offshore travel times ...
... most seismic stations and earthquakes used in this study are near the south coast, because Ryall and Bennett (1968) suggest the presence of a great crustal thickness and possible deep faults between the north coast and Kilauea, and because Hill (1969) reports a large scatter in offshore travel times ...
Earthquake casualty estimation
Recent advances are improving the speed and accuracy of loss estimates immediately after earthquakes (within less than an hour) so that injured people may be rescued more efficiently. After major and large earthquakes, rescue agencies and civil defense managers rapidly need quantitative estimates of the extent of the potential disaster, at a time when information from the affected area may not yet have reached the outside world. For the injured below the rubble every minute counts.To rapidly provide estimates of the extent of an earthquake disaster is much less of a problem in industrialized than in developing countries. This article focuses on how one can estimate earthquake losses in developing countries in real time.