ISNS 4359 Earthquakes and Volcanoes
... Wave traveling in shallowest water will also move with the slowest celerity Waves in deeper water continue moving with relatively greater celerity Wave crests will curve or refract as the wave moves forward ...
... Wave traveling in shallowest water will also move with the slowest celerity Waves in deeper water continue moving with relatively greater celerity Wave crests will curve or refract as the wave moves forward ...
PDF - GFZpublic
... We conducted our study on the basis of the change of Coulomb Failure Stress (ΔCFS) (Scholz, 1990) using the expression ...
... We conducted our study on the basis of the change of Coulomb Failure Stress (ΔCFS) (Scholz, 1990) using the expression ...
estimating the strong-motion of the december 26, 2003 bam (iran)
... the slip distribution or details of the Earth structure. For this reason, it is not only a good modeling tool for past earthquakes, but a valuable tool for predicting ground motion for future events with unknown slip distributions [22, 23, and 24]. Comparisons of stochastic-method predictions with e ...
... the slip distribution or details of the Earth structure. For this reason, it is not only a good modeling tool for past earthquakes, but a valuable tool for predicting ground motion for future events with unknown slip distributions [22, 23, and 24]. Comparisons of stochastic-method predictions with e ...
introduction - California State University, Long Beach
... simulation cases with high dollar loss often had similar numbers of pipe breaks as those with low loss. This insight suggests that, in the MLGW case, pumping station retrofits would be more effective at reducing losses in moderate earthquakes than wholesale pipe upgrades. Results on indirect economi ...
... simulation cases with high dollar loss often had similar numbers of pipe breaks as those with low loss. This insight suggests that, in the MLGW case, pumping station retrofits would be more effective at reducing losses in moderate earthquakes than wholesale pipe upgrades. Results on indirect economi ...
Earthquake-Tsunami in South Jogjakarta Indonesia
... Earthquake-Tsunami in South Jogjakarta Indonesia: Potential, Simulation Models, and... South Java subduction zones have lower seismic activity compared to those in Sumatra [16]. Based on the historical data, intense earthquake happened in South Java subduction area in period of 1977-2007 (Figure 1) ...
... Earthquake-Tsunami in South Jogjakarta Indonesia: Potential, Simulation Models, and... South Java subduction zones have lower seismic activity compared to those in Sumatra [16]. Based on the historical data, intense earthquake happened in South Java subduction area in period of 1977-2007 (Figure 1) ...
Major Earthquakes around Taipei and a Seismic
... model given model parameter v ¼ 2.79, there is, for example, a 17% probability for one earthquake to occur in 1 year. From the 307 major earthquakes, Fig. 5 shows the histograms for earthquake magnitudes and source-to-site distances. Fig. 5 indicates that the majority of the earthquake magnitudes ar ...
... model given model parameter v ¼ 2.79, there is, for example, a 17% probability for one earthquake to occur in 1 year. From the 307 major earthquakes, Fig. 5 shows the histograms for earthquake magnitudes and source-to-site distances. Fig. 5 indicates that the majority of the earthquake magnitudes ar ...
PDF - Geophysical Journal International
... of earthquakes since 1900. A break in Gutenberg–Richter scaling for large earthquakes in global seismicity has been observed, this break is also observed in our Taiwan study. The seismic data from the Central Weather Bureau Seismic Network are in good agreement with the Gutenberg–Richter relation ta ...
... of earthquakes since 1900. A break in Gutenberg–Richter scaling for large earthquakes in global seismicity has been observed, this break is also observed in our Taiwan study. The seismic data from the Central Weather Bureau Seismic Network are in good agreement with the Gutenberg–Richter relation ta ...
ARTICLES - Lamont-Doherty Earth Observatory
... Measurements of slip beginning shortly after the 1966 Parkfield earthquake13,26 appear to provide some insight into these questions. The region of maximum slip in the 2004 event appears to partially fill a deficit in the distribution of slip that had accumulated beginning with the 1966 earthquake13, ...
... Measurements of slip beginning shortly after the 1966 Parkfield earthquake13,26 appear to provide some insight into these questions. The region of maximum slip in the 2004 event appears to partially fill a deficit in the distribution of slip that had accumulated beginning with the 1966 earthquake13, ...
Testing earthquake predictions
... An earthquake catalog is a list of the estimated foci, times, and magnitudes of earthquakes found by a given authority, such as the U.S. Geological Survey. Earthquake catalogs are incomplete below some magnitude (left-censored in magnitude) because smaller events are harder to identify and locate. M ...
... An earthquake catalog is a list of the estimated foci, times, and magnitudes of earthquakes found by a given authority, such as the U.S. Geological Survey. Earthquake catalogs are incomplete below some magnitude (left-censored in magnitude) because smaller events are harder to identify and locate. M ...
McConnell_1e_PPT_Ch05
... Students will explain concepts related to earthquakes. Students will identify locations most likely to experience an earthquake. Students will define and describe different kinds of faults. Students will explain how movements on faults trigger earthquakes. Students will relate characteristics of sei ...
... Students will explain concepts related to earthquakes. Students will identify locations most likely to experience an earthquake. Students will define and describe different kinds of faults. Students will explain how movements on faults trigger earthquakes. Students will relate characteristics of sei ...
Probability gains of an epidemic-type aftershock sequence
... information based on quantitative assessments of an ongoing seismic sequence. This quantitative assessment, which is distinct from traditional earthquake prediction, belongs to the class of synoptic forecasts (a very popular concept in weather forecasting). Synoptic forecasts are based on a simple a ...
... information based on quantitative assessments of an ongoing seismic sequence. This quantitative assessment, which is distinct from traditional earthquake prediction, belongs to the class of synoptic forecasts (a very popular concept in weather forecasting). Synoptic forecasts are based on a simple a ...
Larry J. Ruff - Seismological Research Letters
... deeper than 15 km, but I just saw one on the NEIC Web page that was at 33 k m - - i s this a major discovery?" To help teachers respond to questions such as these, this EduQuakes column is focused on earthquake depth, and the EduPhase section treats _pP. Although not a comprehensive survey of hypoce ...
... deeper than 15 km, but I just saw one on the NEIC Web page that was at 33 k m - - i s this a major discovery?" To help teachers respond to questions such as these, this EduQuakes column is focused on earthquake depth, and the EduPhase section treats _pP. Although not a comprehensive survey of hypoce ...
Coulomb stress changes due to Queensland earthquakes and the
... in South and Central Queensland. To simplify the investigation we have a priori constrained the dip angle of all fault planes to 45 degrees, dipping to the east. We compute the Coulomb stress change along faults oriented at N30W at a depth of 5km. The results are shown in Figure 1, overlain with the ...
... in South and Central Queensland. To simplify the investigation we have a priori constrained the dip angle of all fault planes to 45 degrees, dipping to the east. We compute the Coulomb stress change along faults oriented at N30W at a depth of 5km. The results are shown in Figure 1, overlain with the ...
Tectonic activity and hazards
... There are some good links between sections such as between the ‘prediction’ section and the section on economic development. Overall, the report relates a number of issues to the degree of challenge including level of development; magnitude, perception and predication – and these are supported ...
... There are some good links between sections such as between the ‘prediction’ section and the section on economic development. Overall, the report relates a number of issues to the degree of challenge including level of development; magnitude, perception and predication – and these are supported ...
A first-order second-moment calculation for seismic hazard
... magnitudes for different purposes. For example, local magnitude ML is usually adopted to compile an earthquake catalog, and moment magnitude Mw is often prescribed by a ground motion model. Understandably, when inconsistent units are encountered in an earthquake analysis, magnitude conversion needs ...
... magnitudes for different purposes. For example, local magnitude ML is usually adopted to compile an earthquake catalog, and moment magnitude Mw is often prescribed by a ground motion model. Understandably, when inconsistent units are encountered in an earthquake analysis, magnitude conversion needs ...
- Pacific Disaster Net
... form or by any electronic, mechanical, or other means now known or hereafter invented, including photocopying and recording, or in any information storage or retrieval system, without permission in writing from the publisher. ...
... form or by any electronic, mechanical, or other means now known or hereafter invented, including photocopying and recording, or in any information storage or retrieval system, without permission in writing from the publisher. ...
Transient postseismic mantle relaxation following 2004
... Abstract. Throughout the world, the tsunami generation potential of some large under-sea earthquakes significantly contributes to regional seismic hazard, which gives rise to significant risk in the near-shore provinces where human settlements are in sizeable population, often referred to as coastal ...
... Abstract. Throughout the world, the tsunami generation potential of some large under-sea earthquakes significantly contributes to regional seismic hazard, which gives rise to significant risk in the near-shore provinces where human settlements are in sizeable population, often referred to as coastal ...
A Testable Five-Year Forecast of Moderate and Large Earthquakes
... several important respects. 1. By using the longest possible time span for our “learning” catalog, we have tried to construct a model that will be valid over several decades. Some other models are based on smaller earthquakes over shorter periods; these may not capture effects that are only evident ...
... several important respects. 1. By using the longest possible time span for our “learning” catalog, we have tried to construct a model that will be valid over several decades. Some other models are based on smaller earthquakes over shorter periods; these may not capture effects that are only evident ...
Kenji Satake Affiliation: Earthquake Research Institute The
... Bueau Member of International Union of Geodesy and Geophysics In the last three years since 2011, I served as a burean member of IUGG, and atteneded bureau meetings in 2012 (Lauterbad), 2013 (Prague) and 2014 (Baku), as well as participated numerous e-mail communications, to review and discuss curre ...
... Bueau Member of International Union of Geodesy and Geophysics In the last three years since 2011, I served as a burean member of IUGG, and atteneded bureau meetings in 2012 (Lauterbad), 2013 (Prague) and 2014 (Baku), as well as participated numerous e-mail communications, to review and discuss curre ...
1.0 Introduction Approximately 19% of the Earth`s land area and
... injury, damage etc. (Kappes et al. 2012; Marzocchi et al. 2009). In this paper, the number of fatalities was used to compare the severity of earthquakes, coseismic landslides and earthquake-and-landslide events. 1.2 Coseismic Landslides Coseismic landslides refer to topographic slope failure as a r ...
... injury, damage etc. (Kappes et al. 2012; Marzocchi et al. 2009). In this paper, the number of fatalities was used to compare the severity of earthquakes, coseismic landslides and earthquake-and-landslide events. 1.2 Coseismic Landslides Coseismic landslides refer to topographic slope failure as a r ...
Improvement of Methods for Earthquake
... It is well known that landslides are more likely to occur in some special area. Researches of lots seismic events show that rock type, landform, slope degree, earthquake intensity, earthquake magnitude and distance from the seismic faults or seismic epicenter and so on are the important factors that ...
... It is well known that landslides are more likely to occur in some special area. Researches of lots seismic events show that rock type, landform, slope degree, earthquake intensity, earthquake magnitude and distance from the seismic faults or seismic epicenter and so on are the important factors that ...
The San Andreas Fault System Lecture Notes Page
... the region of the Salton Trough shows some features characteristic of the divergent boundary immediately to the south in Baja California, Mexico. The trough is a pullapart basin that has formed during the past 4 million years as the Peninsular Ranges have pulled away from North America. The spreadin ...
... the region of the Salton Trough shows some features characteristic of the divergent boundary immediately to the south in Baja California, Mexico. The trough is a pullapart basin that has formed during the past 4 million years as the Peninsular Ranges have pulled away from North America. The spreadin ...
a testable five-year forecast of moderate and large earthquakes in
... 2007; Helmstetter et al., 2007; Shen et al., 2007) and elsewhere in several important respects: 1. By using the longest possible time span for our “learning” catalog, we have tried to construct a model that will be valid over several decades. Some other models are based on smaller earthquakes over s ...
... 2007; Helmstetter et al., 2007; Shen et al., 2007) and elsewhere in several important respects: 1. By using the longest possible time span for our “learning” catalog, we have tried to construct a model that will be valid over several decades. Some other models are based on smaller earthquakes over s ...
Earthquake Statistics and Earthquake Research Studies in Pakistan
... be prevented from destruction from future disaster by proper planning of infrastructure and by growing knowledge and awareness in common man to take safety precautions. The seismogenic zones are very dense along the collision plate boundary, i.e. along the Kirthar Suleiman Hindu Kush, Himalaya [4]. ...
... be prevented from destruction from future disaster by proper planning of infrastructure and by growing knowledge and awareness in common man to take safety precautions. The seismogenic zones are very dense along the collision plate boundary, i.e. along the Kirthar Suleiman Hindu Kush, Himalaya [4]. ...
Inglés
... of tectonic potential energy to be purely elastic in a brittle environment. The Sumatra earthquake was a shallow event, and the elastic rebound model is generally adopted. Thus the subducting lithosphere would be moving with a secular rate of a few centimetres per year (6.1 cm for the NOVEL1 model) ...
... of tectonic potential energy to be purely elastic in a brittle environment. The Sumatra earthquake was a shallow event, and the elastic rebound model is generally adopted. Thus the subducting lithosphere would be moving with a secular rate of a few centimetres per year (6.1 cm for the NOVEL1 model) ...
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.