CREW (EU Testing Center for Early Warning & Source Characterization) is a European-level testing facility for earthquake Early Warning systems, developed by the NFO community.
CREW is based on high-dense networks that provide researchers with a testing facility to evaluate and compare new methods, data, and software in a transparent and equal manner. This will help the community to build the next-generation methodologies and software for real-time monitoring of faulting processes. Besides, the testing center will help researchers to use existing softwares on selected datasets and compare new software and methods.
Software running at a CREW receives and processes data from NFO seismic networks to provide early warning parameters. The service also evaluates the performance based on community standard metrics displayed on dedicated web pages.
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CREW operates on the ISNet (Iprinia Seismic Network). Minimum latency waveform data from the network is available on a single SeedLink server to the EEW algorithms that operate on separate Virtual Machines. Each software provides EEW alerts in a standardised format (QuakeML) to a single database, which will be used for performance evaluation. Performance criteria will include location, magnitude, lead-time and ground motion estimation (with uncertainties) and make use of official authoritative bulletins. Performances are finally published on a dedicated web page.
Service provider: UNINA