{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,23]],"date-time":"2025-09-23T13:42:57Z","timestamp":1758634977285,"version":"3.41.2"},"reference-count":52,"publisher":"American Geophysical Union (AGU)","issue":"2","license":[{"start":{"date-parts":[[2012,2,24]],"date-time":"2012-02-24T00:00:00Z","timestamp":1330041600000},"content-version":"vor","delay-in-days":23,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Geochem Geophys Geosyst"],"published-print":{"date-parts":[[2012,2]]},"abstract":"<jats:p>The seismicity of the North Atlantic was monitored from May 2002 to September 2003 by the \u2018SIRENA array\u2019 of autonomous hydrophones. The hydroacoustic signals provide a unique data set documenting numerous low\u2010magnitude earthquakes along the section of the Mid\u2010Atlantic Ridge (MAR) located in a ridge\u2010hot spot interaction context. During the experiment, 1696 events were detected along the MAR axis between 40\u00b0N and 51\u00b0N, with a magnitude of completeness level of<jats:italic>m<\/jats:italic><jats:sub><jats:italic>b<\/jats:italic><\/jats:sub>\u2248 2.4. Inside the array, location errors are in the order of 2 km, and errors in the origin time are less than 1 s. From this catalog, 15 clusters were detected. The distribution of source level (SL) versus time within each cluster is used to discriminate clusters occurring in a tectonic context from those attributed to non\u2010tectonic (i.e. volcanic or hydrothermal) processes. The location of tectonic and non\u2010tectonic sequences correlates well with regions with positive and negative Mantle Bouguer Anomalies (MBAs), indicating the presence of thinner\/colder and thicker\/warmer crust respectively. At the scale of the entire array, both the complete and declustered catalogs derived from the hydroacoustic signals show an increase of the seismicity rate from the Azores up to 43\u00b030\u2032N suggesting a diminishing influence of the Azores hot spot on the ridge\u2010axis temperature, and well correlated with a similar increase in the along\u2010axis MBAs. The comparison of the MAR seismicity with the Residual MBA (RMBA) at different scales leads us to think that the low\u2010magnitude seismicity rates are directly related to along\u2010axis variations in lithosphere rheology and temperatures.<\/jats:p>","DOI":"10.1029\/2011gc003828","type":"journal-article","created":{"date-parts":[[2012,1,31]],"date-time":"2012-01-31T20:52:41Z","timestamp":1328043161000},"source":"Crossref","is-referenced-by-count":12,"title":["Spatiotemporal distribution of the seismicity along the Mid\u2010Atlantic Ridge north of the Azores from hydroacoustic data: Insights into seismogenic processes in a ridge\u2013hot spot context"],"prefix":"10.1029","volume":"13","author":[{"given":"J.","family":"Goslin","sequence":"first","affiliation":[]},{"given":"J.","family":"Perrot","sequence":"additional","affiliation":[]},{"given":"J.\u2010Y.","family":"Royer","sequence":"additional","affiliation":[]},{"given":"C.","family":"Martin","sequence":"additional","affiliation":[]},{"given":"N.","family":"Louren\u00e7o","sequence":"additional","affiliation":[]},{"given":"J.","family":"Luis","sequence":"additional","affiliation":[]},{"given":"R. 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