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Keep this attribution when you reuse the data. Not an official warning service.","sources":[{"name":"GEOFON, GFZ Helmholtz Centre for Geosciences","licence":"CC BY 4.0","credit":"Event locations from the GEOFON program of the GFZ","url":"https://geofon.gfz.de/"},{"name":"INGV","licence":"CC BY 4.0","credit":"INGV – ISIDe Working Group, doi:10.13127/ISIDE","url":"https://terremoti.ingv.it/"},{"name":"U.S. Geological Survey","licence":"Public domain","credit":"U.S. Geological Survey","url":"https://earthquake.usgs.gov/"}]}}