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Showing 1 to 13 of 13 for “"aftershock sequence"”.
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Seismic Source and Attenuation Studies in the Central and Eastern United States
… in seismic-hazard maps. The well-recored aftershock sequence of the 2011 Mineral, Virginia, earthquake offers a rare opportunity to improve our understanding of earthquake processes and earthquake hazard in this populous region of the United States. Moreover, the rapid increase of …
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Stochastic model for the simulation of synthetic main shock-aftershock ground motion sequences
… main shock, a structure may still face damaging aftershocks. The main shock-aftershock sequence may result in major damage and eventually the collapse of a structure. Current studies on seismic hazard mainly focus on the modeling and simulation of main shocks. This paper proposes a stochastic …
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The locations and characteristics of the aftershocks of the October 3, 1974, Peruvian earthquake
Locations of 113 aftershocks of the magnitude-7.6 (M<sub>s</sub>) Peruvian earthquake of October 3, 1974, were determined from data obtained by a ten-station network installed along the coastal area between lat 11° and 14° S. These epicenters define an irregular shaped zone approximately 210 km …
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Seismic fragility of buildings damaged by past earthquakes
… of multiple earthquakes (including main shock-aftershock sequence) and the reality that some buildings might not satisfy the previous seismic design requirement anymore, it is important to include the effect of past earthquakes in fragility estimation of buildings. In this research, the …
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Hypocenter Locations and Focal Mechanism Solutions of Earthquakes in the Epicentral Area of the 1886 Charleston, SC, Earthquake
… modern seismicity can be regarded as a long-term aftershock sequence that is outlining the 1886 damage zone. Variability of shallow focal mechanisms is due to the complex early Mesozoic fault structure in the upper 4-5 km.
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Controls on earthquake rupture and triggering mechanisms in subduction zones
… catalogs: the stochastic Epidemic Type Aftershock Sequence model [Ogata, 1988] and the physically-based rate-state friction model [Dieterich, 1994]. These approaches are combined into a single model that accounts for both aftershock activity and variations in background seismicity rate …
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Controls on earthquake rupture and triggering mechanisms in subduction zones
… catalogs: the stochastic Epidemic Type Aftershock Sequence model [Ogata, 1988] and the physically-based rate-state friction model [Dieterich, 1994]. These approaches are combined into a single model that accounts for both aftershock activity and variations in background seismicity rate …
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Fault plane structure of the 1995 Antofagasta Earthquake (Chile) derived from local seismological parameters
… to 44 seismic stations was set up to record the aftershock sequence. The seaward extension of the network with 9 OBH stations increased significantly the precision of hypocenter determinations. They were distributed mainly on the fault plane itself around the city of Antofagasta and Mejillones …
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Passive Seismic Tomography and Seismicity Hazard Analysis in Deep Underground Mines
… Statistical analyses were performed on the aftershock sequence in order to generate an aftershock decay model to detect potential hazards and evaluate stability of aftershock activities.
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Inversion of seismic source parameters for weak mining-induced and natural earthquakes
… considers a regional dataset, namely the aftershock sequence of the 2010 Maule earthquake (Chile), using broadband stations at regional distances, below 300 km. In this case, the magnitude range of the target aftershocks range down to MW 4.0. This dataset is here considered as a weak …
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Improving statistical seismicity models
… expected in the spatial distribution of aftershocks. However, testing the different hypotheses is challenging because it requires the consideration of the large uncertainties involved in stress calculations as well as the appropriate consideration of secondary aftershock triggering which …
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Analysis and modeling of transient earthquake patterns and their dependence on local stress regimes
… and associated interactions, which includes aftershock triggering as well as induced seismicity, is important for seismic hazard assessment due to earthquakes destructive power. One of the approaches to study earthquake triggering and their interactions is the use of statistical earthquake …
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Stochastic Point Process Modeling for Engineering Applications
<p>Hawkes model or self-exciting point process model is a branching point process model. The model classifies the dataset of discrete events to background and offspring events. It has been used to study interconnected events in many fields, but relatively little work exists in applying these …