OBSERVED BEHAVIOR OF SEISMICALLY ISOLATED BUILDINGS
... time-variant modal identification analyses. The buildings are identified as equivalent, time-varying, linear dynamic systems characterized by their time-varying modal parameters (including fundamental-mode natural frequencies, damping ratios, and mode shapes). The identification analyses for each si ...
... time-variant modal identification analyses. The buildings are identified as equivalent, time-varying, linear dynamic systems characterized by their time-varying modal parameters (including fundamental-mode natural frequencies, damping ratios, and mode shapes). The identification analyses for each si ...
? AN EVALUATION OF CHINESE ANNUAL
... at the time they are made they are confidential. An objective evaluation of the CSB predictions is certainly worthwhile. In this paper, we evaluate the CSB predictions in the 1990s only, because since 1990 the form of these CSB predictions has been more uniform. Our evaluation is based on the origin ...
... at the time they are made they are confidential. An objective evaluation of the CSB predictions is certainly worthwhile. In this paper, we evaluate the CSB predictions in the 1990s only, because since 1990 the form of these CSB predictions has been more uniform. Our evaluation is based on the origin ...
Earthquake forecasting and its verification
... seismographic areas. About a million magnitude two earthquakes occur each year on our planet. In southern California about a thousand magnitude two earthquakes occur each year. Except for the aftershocks of large earthquakes, such as the 1992 M=7.3 Landers earthquake, this seismic activity is essent ...
... seismographic areas. About a million magnitude two earthquakes occur each year on our planet. In southern California about a thousand magnitude two earthquakes occur each year. Except for the aftershocks of large earthquakes, such as the 1992 M=7.3 Landers earthquake, this seismic activity is essent ...
Seismic vulnerability of the Himalayan half-dressed rubble
... offices, health care units, etc. The aim of the experimental study was to understand the damage mechanism of the model, develop damage scale towards deformation-based assessment and retrieve the lateral force-deformation response of the model besides its elastic dynamic properties, i.e. fundamental ...
... offices, health care units, etc. The aim of the experimental study was to understand the damage mechanism of the model, develop damage scale towards deformation-based assessment and retrieve the lateral force-deformation response of the model besides its elastic dynamic properties, i.e. fundamental ...
Improvement of Methods for Earthquake
... are documented with landslides reports due to sparsely inhabited and uncultured situation. The data used for affected area analysis in this paper is shown in Table 1. This data includes earthquake with magnitude from Ms6.0 to 7.75. Of these data, only Luhuo earthquake which occurred on Feb. 6, 1973 ...
... are documented with landslides reports due to sparsely inhabited and uncultured situation. The data used for affected area analysis in this paper is shown in Table 1. This data includes earthquake with magnitude from Ms6.0 to 7.75. Of these data, only Luhuo earthquake which occurred on Feb. 6, 1973 ...
Seismic Considerations for the Art Deco Interwar Reinforced
... like New Zealand that historically had limited access to structural iron and steel. Despite having been constructed within the past century, the famous RC Art Deco buildings in Hawke’s Bay, New Zealand, represent a critical stock of architectural heritage for a country that has a proud history of st ...
... like New Zealand that historically had limited access to structural iron and steel. Despite having been constructed within the past century, the famous RC Art Deco buildings in Hawke’s Bay, New Zealand, represent a critical stock of architectural heritage for a country that has a proud history of st ...
Relocation of large intermediate-depth earthquakes in the Vrancea
... are available both P- and S-wave arrivals are used for locating earthquakes to obtain accurate hypocenters. However, earlier, in particular prior to the 1980’s, the information was poor and scarce. For example, the 1940 Mw 7.7 earthquake was recorded and reported at 150 stations worldwide, but in Ro ...
... are available both P- and S-wave arrivals are used for locating earthquakes to obtain accurate hypocenters. However, earlier, in particular prior to the 1980’s, the information was poor and scarce. For example, the 1940 Mw 7.7 earthquake was recorded and reported at 150 stations worldwide, but in Ro ...
Relocation of aftershocks, focal mechanisms and stress inversion:
... to have been occurring in the Kachchh region since historical times (Rajendran and Rajendran, 2001). It has been inferred, based on the radiocarbon dating, that an earthquake occurred between A.D. 885–1035 along the Allah Bund fault (Rajendran and Rajendran, 2001). In 1668, a moderate earthquake occ ...
... to have been occurring in the Kachchh region since historical times (Rajendran and Rajendran, 2001). It has been inferred, based on the radiocarbon dating, that an earthquake occurred between A.D. 885–1035 along the Allah Bund fault (Rajendran and Rajendran, 2001). In 1668, a moderate earthquake occ ...
Evaluating earthquake predictions and earthquake
... org.scec.predictionTesting.MathUtil.inverseCumulativePoisson.) For λ = 11.1, p = 5%, you can verify that F-1(ω|λ) = 6. ...
... org.scec.predictionTesting.MathUtil.inverseCumulativePoisson.) For λ = 11.1, p = 5%, you can verify that F-1(ω|λ) = 6. ...
evaluation of ground motion intensities from induced earthquakes
... There has recently been a significant increase in the occurrence of earthquakes in the Central and Eastern United 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 ...
... There has recently been a significant increase in the occurrence of earthquakes in the Central and Eastern United 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 ...
On the onset of ionospheric precursors 40 min before strong
... satellite signals (1575.42 and 1227.60 MHz carrier phase frequencies) are transmitted to ground stations through the ionosphere, and the phase of these signals are affected by the path-integrated electron density known as slant TEC. The anomaly identified by Heki [2011] is relative to a cubic least s ...
... satellite signals (1575.42 and 1227.60 MHz carrier phase frequencies) are transmitted to ground stations through the ionosphere, and the phase of these signals are affected by the path-integrated electron density known as slant TEC. The anomaly identified by Heki [2011] is relative to a cubic least s ...
Urgent aftershock observation of the 2004 off the Kii Peninsula... using ocean bottom seismometers
... 1975). Ando (1975) showed that the recurrence interval of the great earthquakes is approximately 100–200 years. The last great earthquakes along the Nankai trough were in 1944 (Tonankai earthquake, Ms=8.16) and 1946 (Nankai earthquake, Ms=8.19); both hypocenters were located off the Kii Peninsula at ...
... 1975). Ando (1975) showed that the recurrence interval of the great earthquakes is approximately 100–200 years. The last great earthquakes along the Nankai trough were in 1944 (Tonankai earthquake, Ms=8.16) and 1946 (Nankai earthquake, Ms=8.19); both hypocenters were located off the Kii Peninsula at ...
Benefit in the wake of disaster: Long
... effects on individual welfare of those disaster-related physical destructions remain poorly understood. Indeed, more attention has been devoted to the smaller number of extreme disasters that affect the stock of human capital by taking large death toll, causing injuries, or preventing households to ...
... effects on individual welfare of those disaster-related physical destructions remain poorly understood. Indeed, more attention has been devoted to the smaller number of extreme disasters that affect the stock of human capital by taking large death toll, causing injuries, or preventing households to ...
Relationship between Modified Mercalli Intensity and peak ground
... level of VIII in a radius of 150 km from its source. After that, on 5th May 1930, a Mw-7.3 earthquake occurred again in southern Myanmar, generating a maximum MMI level of IX. Then, on 3rd - 4th December 1930, two earthquakes of approximately the same magnitude (~Mw 7.3) in Pyu and Yangon, respectiv ...
... level of VIII in a radius of 150 km from its source. After that, on 5th May 1930, a Mw-7.3 earthquake occurred again in southern Myanmar, generating a maximum MMI level of IX. Then, on 3rd - 4th December 1930, two earthquakes of approximately the same magnitude (~Mw 7.3) in Pyu and Yangon, respectiv ...
Satellite thermal infrared anomalies associated with strong
... 1990) and a moderate earthquake (M w = 5.9, 27 October 2004) have been analyzed. Anomalous spatio-temporal patterns of these parameters developed a few days up to few weeks before the earthquakes disappeared after the main shocks. Significant increases in land surface temperature, outgoing long-wave ...
... 1990) and a moderate earthquake (M w = 5.9, 27 October 2004) have been analyzed. Anomalous spatio-temporal patterns of these parameters developed a few days up to few weeks before the earthquakes disappeared after the main shocks. Significant increases in land surface temperature, outgoing long-wave ...
Ground uplift detected by precise leveling in the Ontake earthquake... area, central Japan in 2002–2004
... Since 1978, earthquake swarms have been observed continuously on the east flank of the Mt. Ontake Volcano in western Nagano, Japan. During a peak in swarm activity, a phreatic explosion occurred at the Ontake volcano 7 km away in October 1982. The M6.8 Nagano-ken Seibu Earthquake also occurred in th ...
... Since 1978, earthquake swarms have been observed continuously on the east flank of the Mt. Ontake Volcano in western Nagano, Japan. During a peak in swarm activity, a phreatic explosion occurred at the Ontake volcano 7 km away in October 1982. The M6.8 Nagano-ken Seibu Earthquake also occurred in th ...
2011 Christchurch earthquake
The February 2011 Christchurch earthquake occurred on 22 February at 12:51pm local time (23:51 21 February UTC) and registered 6.3 on the Richter scale. The earthquake struck the Canterbury Region in New Zealand's South Island and was centred 2 kilometres (1.2 mi) west of the port town of Lyttelton, and 10 kilometres (6 mi) south-east of the centre of Christchurch, at the time New Zealand's second-most populous city. The earthquake caused widespread damage across Christchurch, killing 185 people in the nation's second deadliest natural disaster.Christchurch's central city and eastern suburbs were badly affected, with damage to buildings and infrastructure already weakened by the magnitude 7.1 Canterbury earthquake of 4 September 2010 and its aftershocks. Significant liquefaction affected the eastern suburbs, producing around 400,000 tonnes of silt. The earthquake was felt across the South Island and parts of the lower and central North Island. While the initial quake only lasted for approximately 10 seconds, the damage was severe because of the location and shallowness of the earthquake's epicentre in relation to Christchurch and previous quake damage. Subsequent population loss saw the Christchurch main urban area fall behind the Wellington equivalent to decrease from second to third most populous area in New Zealand.