Source Characterization for Earthquake Early Warning
Earthquake early warning; Earthquake ground motion; Earthquake source observation; Real-time location; Real-time magnitude
Earthquake Early Warning Systems (EEWS) are real-time, seismic monitoring infrastructures that are able to provide a rapid notification of the potential damaging effects of an impending earthquake. This objective is achieved through the fast telemetry and processing of data from dense instrument arrays deployed in the source region of the event of concern (regional EEWS) or surrounding/at the target infrastructure (front-detection or site-specific EEWS).
A regional EEWS is based on a dense sensor network covering a portion or the entire area that is threatened by earthquakes. The relevant source parameters (event location and magnitude) are estimated from the early portion of recorded signals (initial P-waves) and are used to predict, with a quantified confidence, a ground-motion intensity measure at a distant site where a target structure of...
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