Computing displacement from measured acceleration is important for understanding the characteristics of an earthquake. However, to obtain such displacement with a good accuracy is difficult. It is partly because the low-frequency component dominating the behavior of the displacement is often affected by the sensor’s tilt and the measurement error. To avoid these, a high pass filter is usually a...

6 To the Editor, 7 8 On January 12, 2010, a 7.0 earthquake struck Haiti, 9 affecting 3 million people and causing 220000 deaths and 10 more than 300000 injuries [1]. In response to a request from 11 Hopital Saint Francois de Sales in Port-au-Prince, a series of 12 surgical teams were deployed from the Shock Trauma Center 13 at the University of Maryland Medical Center (STC-UMMC) 14 to operate 2...

We propose a new algorithm to rapidly determine earthquake source and ground-motion parameters for earthquake early warning (EEW). This algorithm uses the acceleration, velocity, and displacement waveforms of a single three-component broadband (BB) or strong-motion (SM) sensor to perform real-time earthquake/noise discrimination and near/far source classification. When an earthquake is detected...

Strong motion records made by vertical arrays allow estimation of nonlinear soil behavior in layers at different depths. As an example, records obtained during the 1995 Hyogo-ken Nanbu earthquake at Port-Island, SGK, and TKS sites are used to estimate the stress-strain dependencies of soils. For different layers, different types of nonlinear stress-strain curves are determined, showing the best...

Natural disasters have always been followed by a fear of infectious diseases. This raised historical debate about one of the most feared scenarios: the outbreak of bubonic plague caused by Yersinia pestis. One such event was recorded in the Indian state Maharashtra in 1994 after an earthquake. In multidisciplinary historical approach to the evolution of plague, many experts ignore the possibili...

Abstract The record-shattering hot day in the Pacific Northwest June 2021 is used to motivate a study of temperature extremes very large hindcast ensemble. hottest days ensemble have similar scale and synoptic patterns those associated with observed event. From perspective fixed location, are acutely sensitive chance sequencing dry period precisely positioned weather pattern. These thus rare re...