{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T10:47:22Z","timestamp":1774262842762,"version":"3.50.1"},"reference-count":94,"publisher":"American Geophysical Union (AGU)","issue":"B12","license":[{"start":{"date-parts":[[2005,12,30]],"date-time":"2005-12-30T00:00:00Z","timestamp":1135900800000},"content-version":"vor","delay-in-days":29,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Geophys. Res."],"published-print":{"date-parts":[[2005,12]]},"abstract":"<jats:p>In the seismological literature the 3 January 1117 earthquake represents an interesting case study, both for the sheer size of the area in which that event is recorded by the monastic sources of the 12th century, and for the amount of damage mentioned. The 1117 event has been added to the earthquake catalogues of up to five European countries (Italy, France, Belgium, Switzerland, the Iberian peninsula), and it is the largest historical earthquake for northern Italy. We have analyzed the monastic time system in the 12th century and, by means of a comparative analysis of the sources, have correlated the two shocks mentioned (in the night and in the afternoon of 3 January) to territorial effects, seeking to make the overall picture reported for Europe more consistent. The connection between the linguistic indications and the localization of the effects has allowed us to shed light, with a reasonable degree of approximation, upon two previously little known earthquakes, probably generated by a sequence of events. A first earthquake in lower Germany (I<jats:sub>0<\/jats:sub>(epicentral intensity) VII\u2013VIII MCS (Mercalli, Cancani, Sieberg),<jats:italic>M<\/jats:italic>6.4) preceded the far more violent one in northern Italy (Verona area) by about 12\u201313 hours. The second event is the one reported in the literature. We have put forward new parameters for this Veronese earthquake (I<jats:sub>0<\/jats:sub>IX MCS,<jats:italic>M<\/jats:italic>7.0). A third earthquake is independently recorded in the northwestern area of Tuscany (Imax VII\u2010VIII MCS), but for the latter event the epicenter and magnitude cannot be evaluated.<\/jats:p>","DOI":"10.1029\/2005jb003683","type":"journal-article","created":{"date-parts":[[2005,12,29]],"date-time":"2005-12-29T21:03:23Z","timestamp":1135890203000},"source":"Crossref","is-referenced-by-count":34,"title":["The \u201cexceptional\u201d earthquake of 3 January 1117 in the Verona area (northern Italy): A critical time review and detection of two lost earthquakes (lower Germany and Tuscany)"],"prefix":"10.1029","volume":"110","author":[{"given":"Emanuela","family":"Guidoboni","sequence":"first","affiliation":[{"name":"Storia Geofisica Ambiente Bologna Italy"}]},{"given":"Alberto","family":"Comastri","sequence":"additional","affiliation":[{"name":"Storia Geofisica Ambiente Bologna Italy"}]},{"given":"Enzo","family":"Boschi","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia Rome Italy"}]}],"member":"13","published-online":{"date-parts":[[2005,12,30]]},"reference":[{"key":"e_1_2_9_2_1","series-title":"Monumenta Ger. 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