A real-time seismic monitoring infrastructure has been recently installed and it is actually operating in southern Italy, whose main purposes are to rapidly issue an earthquake alert, to provide near-real-time maps of the peak ground motion and intensity shaking and to test the feasibility of earthquake early warning following moderate to large earthquakes occurring along the southern Apenninic...

Recent results suggest that measurements of the average “predominant period,” sp, of an earthquake using the first few seconds of P waves provide a rapid approximate estimate of magnitude that can be used for earthquake early warning systems. Although these prior studies demonstrate the empirical value of such an approach, we here examine the theoretical properties of the predominant period est...

This paper describes a novel method for structural health monitoring of buildings, currently being developed at the University of Southern California for future applications in earthquake early warning systems. The method uses data from vibrational sensors and is based on detecting changes in travel times of waves propagating through the structure. It is an intermediate scale method, which can ...

■ Abstract Real-time seismology refers to a practice in which seismic data are collected and analyzed quickly after a significant seismic event, so that the results can be effectively used for postearthquake emergency response and early warning. As the technology of seismic instrumentation, telemetry, computers, and data storage facility advances, the real-time seismology for rapid postearthqua...

In a medium-to-large earthquake, there are often reports of people being trapped or injured in elevators. This study investigates using an earthquake early warning (EEW) system, which provides seconds to tens of seconds warning before seismic waves arrive at a site, to help people escape from the elevators before a strong shaking arrives. However, such an application remains as a major engineer...

INTRODUCTION There exist some 361 strong motion accelerographs in Turkey. About 158 accelerographs (40% analog, 60% digital) are owned and operated by Earthquake Research Department (ERD) of Ministry of Public Works as the national strong motion network distributed all around Turkey. About 200 digital strong motion accelerographs are owned and operated by Kandilli Observatory and Earthquake Res...

Earthquake mitigation efforts in the United States currently use long-term probabilistic hazard assessments and rapid post-earthquake notification to reduce the potential damage of earthquakes. Here we present the seismological design for and demonstrate the feasibility of a short-term hazard warning system. Using data from past earthquakes, we show that our Earthquake Alarm System (ElarmS) cou...

The December 2004 Indian Ocean tsunami was the worst tsunami disaster in the world’s history with more than 200,000 casualties. This disaster was attributed to giant size (magnitude M ~ 9, source length >1000 km) of the earthquake, lacks of expectation of such an earthquake, tsunami warning system, knowledge and preparedness for tsunamis in the Indian Ocean countries. In the last ten years, sei...

In this paper, I described the methods that I used for the creation of Xlets, which are Java applets that are developed for the IDTV environment; and the methods for online data retrieval and processing that I utilized in these Xlets. The themes that I chose for the Xlets of the IDTV applications are Earthquake and Tsunami Early Warning; Recent Seismic Activity Report; and Emergency Services. T...