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dc.contributor.authorJeddi, Zeinab
dc.contributor.authorOttemöller, Lars
dc.contributor.authorSørensen, Mathilde Bøttger
dc.contributor.authorRezaei, Sara
dc.contributor.authorGibbons, Steven John
dc.contributor.authorStrømme, Marte L.
dc.contributor.authorVoss, Peter H.
dc.contributor.authorDahl-Jensen, Trine
dc.date.accessioned2021-10-11T07:36:14Z
dc.date.available2021-10-11T07:36:14Z
dc.date.created2021-09-28T20:03:11Z
dc.date.issued2021
dc.identifier.issn0895-0695
dc.identifier.urihttps://hdl.handle.net/11250/2788909
dc.descriptionPostponed access: the file will be available after 2022-03-31en_US
dc.description.abstractThe mid‐ocean ridge system is the main source of earthquakes within the Arctic region. The earthquakes are recorded on the permanent land‐based stations in the region, although, smaller earthquakes remain undetected. In this study, we make use of three Ocean Bottom Seismographs (OBSs) that were deployed offshore western Svalbard, along the spreading ridges. The OBS arrival times were used to relocate the regional seismicity, using a Bayesian approach, which resulted in a significant improvement with tighter clustering around the spreading ridge. We also extended the regional magnitude scales for the northern Atlantic region for OBSs, by computing site correction terms. Besides location and magnitude improvement, the OBS network was able to detect hundreds of earthquakes, mostly with magnitude below Mw 3, including a swarm activity at the Molloy Deep. Our offshore observations provide further evidence of a low‐velocity anomaly offshore Svalbard, at the northern tip of Knipovich ridge that was previously seen in full‐waveform inversion. We conclude that even a single permanent OBS near the ridge would make a significant difference to earthquake catalogs and their interpretation.en_US
dc.language.isoengen_US
dc.publisherSeismological Society of Americaen_US
dc.titleImproved seismic monitoring with OBS deployment in the Arctic: A pilot study from offshore western Svalbarden_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionacceptedVersionen_US
dc.rights.holderCopyright Seismological Society of Americaen_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1
dc.identifier.doi10.1785/0220200471
dc.identifier.cristin1940124
dc.source.journalSeismological Research Lettersen_US
dc.source.pagenumber2705-2717en_US
dc.relation.projectEC/H2020/727890en_US
dc.identifier.citationSeismological Research Letters. 2021, 92 (5), 2705-2717.en_US
dc.source.volume92en_US
dc.source.issue5en_US


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