In aiming to decrease the number of casualties and people with difficulty in wide-area evacuations due to a large earthquake, it is highly important to visualize and quantify the potential danger in residential areas. In this paper, we construct a multi-agent simulation model, which describes property damage (such as building-collapse, the spread of fire and blocking of streets) and people’s ev...

Our purpose is to analyze the causes of recent failures in earthquake forecasting, as well as the difficulties in earthquake investigation. We then propose that more rigorous methods are necessary in earthquake seismology research. First, we discuss the failures of direct earthquake forecasts and the poor quantitative predictive power of theoretical and computer simulation methods in explaining...

In the past decade, the availability of spacederived crustal deformation data has transformed the solid Earth geophysics field. Global Positioning System (GPS) networks deployed globally provide precise timedependent information on how the Earth’s crust responds to earthquakes and plate tectonic processes. Interferometric Synthetic Aperture Radar (InSAR) data reveal spatially dense information ...

An online optimization method was proposed in this paper to improve the accuracy of numerical–experimental hybrid simulations of bridges subjected to earthquake forces. The online optimization method aims to solve the problem induced by the inconsistency of the multiple identical bridge piers where only one or a few of them are simulated experimentally by physical specimens, while the others ar...

Recently, with the support of the Network for Earthquake Engineering Simulation Program of the National Science Foundation in the US, Oregon State University (OSU) has completed the upgrading of a Tsunami Wave Basin Facility to support experimental and computational tsunami research. This paper briefly describes the physical experimental facility and selected experimental and numerical models a...

Chip multiprocessors (CMP) are widely used for high performance computing and are being configured in a hierarchical manner to compose a CMP compute node in a CMP system. Such a CMP system provides a natural programming paradigm for hybrid MPI/OpenMP applications. In this paper, we use OpenMP to parallelize a sequential earthquake simulation code for modeling spontaneous earthquake rupture alon...

A least-squares method is used to determine the fundamental parameters of a simple mathematical model for the mechanical subsystem of the NEES-UCSD large high performance outdoor shaking table. The parameters identified include the effective horizontal mass, the effective horizontal stiffness, and the coefficient of the classical Coulomb friction and viscous damping elements representing the va...

In certain parts of the USA, both earthquake and snow hazards may be significant. Turkstra’s rule is commonly used for load combinations. However, the rule may not be acceptable for structures that are exposed to both snow and earthquake loads that assume a significant level. In this paper, a hazard simulation computer program (HASP) is developed and Monte Carlo Simulation is performed to inves...