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        <gmd:MD_DigitalTransferOptions>
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            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>http://horus.bo.ingv.it/DataFolder/HORUS_Ita_Catalog.zip</gmd:URL>
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                <gmx:Anchor xlink:href="https://registry.geodati.gov.it/metadata-codelist/ProtocolValue/www-download">download</gmx:Anchor>
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                    <gmx:Anchor xlink:href="http://data.europa.eu/eli/reg/2010/1089">Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services</gmx:Anchor>
                  </gmd:title>
                  <gmd:date>
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                        <gco:Date>2010-12-08</gco:Date>
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        </gmd:DQ_DomainConsistency>
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      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:statement>
            <gco:CharacterString>We implemented an automatic procedure for building and continuously updating the HOmogenized instRUmental Seismic catalog (HORUS) of the Italian area. Such procedure performs a) the downloading of hypocentral and magnitude data from the Italian Seismological Instrumental and parametric Database (ISIDe) of the Istituto Nazionale di Geofisica e Vulcanologia (INGV) and of Mw data from on-line moment tensor catalogs available for the Italian and Euromediterranean area; b) the matching of events of ISIDe with those of moment tensor catalogs, based on temporal and spatial criteria; c) the computation of Mw proxies from ML and Md according to Gasperini et al. (2013) and their merging with true Mw estimates from moment tensor catalogs homogenized according to Gasperini et al. (2012); d) the assembly of the different sections of the catalog from 1960 to present; f) the copying of the homogeneous catalog on the publicly accessible web site http://horus.bo.ingv.it. &#13;
&#13;
Gasperini P., Lolli B., Vannucci G., Boschi E. (2012). A comparison of moment magnitude estimates for the European–Mediterranean and Italian region, Geophys. J. Int., 190, 1733-1745, doi: 10.1111/j.1365-246X.2012.05575.x.&#13;
&#13;
Gasperini P., Lolli B. and Vannucci G. (2013). Empirical Calibration of Local Magnitude Data Sets Versus Moment Magnitude in Italy, Bull., Seism. Soc. Am., 103, 2227-2246, doi: 10.1785/0120120356.
HOmogenized instRUmental Seismic catalog (HORUS) is documented by
Lolli, B., Randazzo, D., Vannucci, G., &amp; Gasperini, P. (2020). The Homogenized Instrumental Seismic Catalog (HORUS) of Italy from 1960 to Present. Seismological Research Letters, 91(6), 3208–3222. https://doi.org/10.1785/0220200148
Gasperini, P., Lolli, B., Vannucci, G., &amp; Boschi, E. (2012). A comparison of moment magnitude estimates for the European-Mediterranean and Italian regions. Geophysical Journal International, 190(3), 1733–1745. https://doi.org/10.1111/j.1365-246x.2012.05575.x
Gasperini, P., Lolli, B., &amp; Vannucci, G. (2013). Empirical Calibration of Local Magnitude Data Sets Versus Moment Magnitude in Italy. Bulletin of the Seismological Society of America, 103(4), 2227–2246. https://doi.org/10.1785/0120120356
Lolli, B., Gasperini, P., &amp; Rebez, A. (2017). Homogenization in Terms of Mw of Local Magnitudes of Italian Earthquakes That Occurred before 1981. Bulletin of the Seismological Society of America, 108(1), 481–492. https://doi.org/10.1785/0120170114</gco:CharacterString>
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