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In contrast, the seismicity in Rana, where swarms are also observed, does not exhibit such pattern. Earthquakes in the Rana cluster occur within isolated spots and show repeating earthquake behavior. Singular spectrum analysis shows that seismicity in Jektvik has a dominant annual periodicity and is modulated by hydrological load, which is also observable on Global Navigation Satellite Systems stations. Although hydrological load changes also affect Rana, its seismicity does not exhibit an annual periodicity. We hypothesize that the Jektvik seismicity occurs within a fluid-rich fracture system that is affected by hydrological modulation, whereas the Rana seismicity occurs within fault irregularities, which accumulate stress and rupture repeatedly. This study presents a case where adjacent areas within an intraplate setting can have significantly different seismogenic behaviors.<\/jats:p>","DOI":"10.1785\/0220220325","type":"journal-article","created":{"date-parts":[[2023,1,20]],"date-time":"2023-01-20T13:14:21Z","timestamp":1674220461000},"source":"Crossref","is-referenced-by-count":1,"title":["Comparison of Earthquake Clusters in a Stable Continental Region: A Case Study from Nordland, Northern Norway"],"prefix":"10.1785","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8927-0167","authenticated-orcid":false,"given":"Hasbi Ash","family":"Shiddiqi","sequence":"first","affiliation":[{"name":"1Department of Earth Science, University of Bergen, Bergen, Norway"}]},{"given":"Lars","family":"Ottem\u00f6ller","sequence":"additional","affiliation":[{"name":"1Department of Earth Science, University of Bergen, Bergen, Norway"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0805-249X","authenticated-orcid":false,"given":"St\u00e9phane","family":"Rondenay","sequence":"additional","affiliation":[{"name":"1Department of Earth Science, University of Bergen, Bergen, Norway"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7457-4179","authenticated-orcid":false,"given":"Susana","family":"Cust\u00f3dio","sequence":"additional","affiliation":[{"name":"2Instituto Dom Luiz, Faculdade de Ci\u00eancias, Universidade de Lisboa, Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8291-269X","authenticated-orcid":false,"given":"Felix","family":"Halpaap","sequence":"additional","affiliation":[{"name":"1Department of Earth Science, University of Bergen, Bergen, Norway"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2514-4644","authenticated-orcid":false,"given":"Vineet K.","family":"Gahalaut","sequence":"additional","affiliation":[{"name":"3CSIR-National Geophysical Research Institute, Hyderabad, India"}]}],"member":"790","published-online":{"date-parts":[[2023,1,20]]},"reference":[{"issue":"2","key":"2023012013135775900_rf1","doi-asserted-by":"publisher","first-page":"379","DOI":"10.1785\/BSSA0810020379","article-title":"The ML scale in Norway","author":"Alsaker","year":"1991","journal-title":"Bull. 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