Documentation preserved at the NSA, National Seismological Archive - British Geological Survey, Edinburgh (UK), reproduced on 2006 by SGA Storia Geofisica Ambiente (Bologna) on behalf of the Istituto Nazionale di Geofisica e Vulcanologia (Rome), in the frame of Euroseismos project.

These data are considered public domain and may be freely distributed or copied for non-profit purposes provided the project is properly quoted.

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