{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T21:31:46Z","timestamp":1774906306340,"version":"3.50.1"},"reference-count":54,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2021,2,23]],"date-time":"2021-02-23T00:00:00Z","timestamp":1614038400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Amer Foundation, Finland","award":["Sporttia Stadiin\/Urban Exerciser project"],"award-info":[{"award-number":["Sporttia Stadiin\/Urban Exerciser project"]}]},{"DOI":"10.13039\/501100003125","name":"Suomen Kulttuurirahasto","doi-asserted-by":"publisher","award":["Science Workshop funding"],"award-info":[{"award-number":["Science Workshop funding"]}],"id":[{"id":"10.13039\/501100003125","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005781","name":"Koneen S\u00e4\u00e4ti\u00f6","doi-asserted-by":"publisher","award":["N\/A"],"award-info":[{"award-number":["N\/A"]}],"id":[{"id":"10.13039\/501100005781","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002341","name":"Academy of Finland","doi-asserted-by":"publisher","award":["331549"],"award-info":[{"award-number":["331549"]}],"id":[{"id":"10.13039\/501100002341","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007797","name":"University of Helsinki","doi-asserted-by":"publisher","award":["N\/A"],"award-info":[{"award-number":["N\/A"]}],"id":[{"id":"10.13039\/100007797","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Osk. Huttunen Foundation","award":["Visiting Fellow at Clare Hall College, Cambridge"],"award-info":[{"award-number":["Visiting Fellow at Clare Hall College, Cambridge"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>The coronavirus disease 2019 (COVID-19) crisis resulted in unprecedented changes in the spatial mobility of people across societies due to the restrictions imposed. This also resulted in unexpected mobility and population dynamics that created a challenge for crisis preparedness, including the mobility from cities during the crisis due to the underlying phenomenon of multi-local living. People changing their residences can spread the virus between regions and create situations in which health and emergency services are not prepared for the population increase. Here, our focus is on urban\u2013rural mobility and the influence of multi-local living on population dynamics in Finland during the COVID-19 crisis in 2020. Results, based on three mobile phone datasets, showed a significant drop in inter-municipal mobility and a shift in the presence of people\u2014a population decline in urban centres and an increase in rural areas, which is strongly correlated to secondary housing. This study highlights the need to improve crisis preparedness by: (1) acknowledging the growing importance of multi-local living, and (2) improving the use of novel data sources for monitoring population dynamics and mobility. Mobile phone data products have enormous potential, but attention should be paid to the varying methodologies and their possible impact on analysis.<\/jats:p>","DOI":"10.3390\/ijgi10020103","type":"journal-article","created":{"date-parts":[[2021,2,23]],"date-time":"2021-02-23T12:40:16Z","timestamp":1614084016000},"page":"103","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":96,"title":["Escaping from Cities during the COVID-19 Crisis: Using Mobile Phone Data to Trace Mobility in Finland"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0159-0084","authenticated-orcid":false,"given":"Elias","family":"Willberg","sequence":"first","affiliation":[{"name":"Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, FI-00014 Helsinki, Finland"},{"name":"Helsinki Institute of Sustainability Science, Institute of Urban and Regional Studies, University of Helsinki, FI-00014 Helsinki, Finland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3446-1545","authenticated-orcid":false,"given":"Olle","family":"J\u00e4rv","sequence":"additional","affiliation":[{"name":"Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, FI-00014 Helsinki, Finland"},{"name":"Helsinki Institute of Sustainability Science, Institute of Urban and Regional Studies, University of Helsinki, FI-00014 Helsinki, Finland"}]},{"given":"Tuomas","family":"V\u00e4is\u00e4nen","sequence":"additional","affiliation":[{"name":"Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, FI-00014 Helsinki, Finland"},{"name":"Helsinki Institute of Sustainability Science, Institute of Urban and Regional Studies, University of Helsinki, FI-00014 Helsinki, Finland"}]},{"given":"Tuuli","family":"Toivonen","sequence":"additional","affiliation":[{"name":"Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, FI-00014 Helsinki, Finland"},{"name":"Helsinki Institute of Sustainability Science, Institute of Urban and Regional Studies, University of Helsinki, FI-00014 Helsinki, Finland"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"22572","DOI":"10.1073\/pnas.1922663117","article-title":"The duration of travel impacts the spatial dynamics of infectious diseases","volume":"117","author":"Giles","year":"2020","journal-title":"Proc. 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