Abstract
The French Atomic Energy Commission (CEA-LDG) is running a large-aperture seismic network in France.One of its basic purposes is to detect and localize teleseisms. It is composed of twenty short-period seismographs (vertical component) whose data are transmitted by VHF transmission to Bruyères-le-Châtel in the vicinity of Paris, where they are recorded and processed.After a brief description of the network itself and first real-time data processing and localization results we explain arrival-time residuals for a large number of epicenters by the presence of possible upper-mantle anomalies under France.
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