An Earthquake?

Probability of Detecting an Earthquake

We present a new method for estimating earthquake detection probabilities that avoids assumptions about earthquake occurrence, for example, the event-size distribution, and uses only empirical data: phase data, station information, and network-specific attenuation relations. First, we determine the detection probability for each station as a function of magnitude and hypocentral distance, using...

Towards an Integrated Earthquake Disaster Simulation System

This paper introduces the overall structure of an integrated earthquake disaster simulation system which is being developed under five year Special Project for Earthquake Disaster Mitigation in Urban Areas supported by the MEXT of Japan. This project aims to connect in a unity more than a dozen of simulators for individual natural phenomena and human activities involved in a big urban earthquak...

Seismic CAT-Scan of an Ancient Earthquake

Two-dimensional and three-dimensional seismic surveys were conducted across the Oquirrh fault, Utah with the purpose of imaging the fault structure to a depth of about 15 m. Results show that the 3-D tomogram clearly delineates the fault zone and a colluvial wedge, both of which correlate extremely well with the geologic cross-section interpreted from an adjacent trench. The thickness of the co...

An Eeri Seminar Earthquake Records and Design

An Eeri Seminar Earthquake Records and Design