{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T14:13:51Z","timestamp":1777126431270,"version":"3.51.4"},"reference-count":93,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2022,6,24]],"date-time":"2022-06-24T00:00:00Z","timestamp":1656028800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union\u2019s Horizon 2020 research and innovation programme","award":["821046"],"award-info":[{"award-number":["821046"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The Internet of things concept empowered by low-cost sensor technologies and headless computers has upscaled the applicability of vibration monitoring systems in recent years. Raspberry Shake devices are among those systems, constituting a crowdsourcing framework and forming a worldwide seismic network of over a thousand nodes. While Raspberry Shake devices have been proven to densify seismograph arrays efficiently, their potential for structural health monitoring (SHM) is still unknown and is open to discovery. This paper presents recent findings from existing buildings located in Bucharest (Romania) equipped with Raspberry Shake 4D (RS4D) devices, whose signal recorded under multiple seismic events has been analyzed using different modal identification algorithms. The obtained results show that RS4D modules can capture the building vibration behavior despite the short-duration and low-amplitude excitation sources. Based on 15 RS4D device readings from five different multistorey buildings, the results do not indicate damage in terms of modal frequency decay. The findings of this research propose a baseline for future seismic events that can track the changes in vibration characteristics as a consequence of future strong earthquakes. In summary, this research presents multi-device, multi-testbed, and multi-algorithm evidence on the feasibility of RS4D modules as SHM instruments, which are yet to be explored in earthquake engineering.<\/jats:p>","DOI":"10.3390\/s22134787","type":"journal-article","created":{"date-parts":[[2022,6,26]],"date-time":"2022-06-26T22:50:23Z","timestamp":1656283823000},"page":"4787","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Raspberry Shake-Based Rapid Structural Identification of Existing Buildings Subject to Earthquake Ground Motion: The Case Study of Bucharest"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3047-6312","authenticated-orcid":false,"given":"Ali G\u00fcney","family":"\u00d6zcebe","sequence":"first","affiliation":[{"name":"European Centre for Training and Research in Earthquake Engineering (EUCENTRE), 27100 Pavia, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0149-3025","authenticated-orcid":false,"given":"Alexandru","family":"Tiganescu","sequence":"additional","affiliation":[{"name":"National Institute for Earth Physics, Calugareni 12, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7177-0753","authenticated-orcid":false,"given":"Ekin","family":"Ozer","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XQ, UK"},{"name":"School of Civil Engineering, University College Dublin, D04V1W8 Dublin, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caterina","family":"Negulescu","sequence":"additional","affiliation":[{"name":"French Geological Survey (BRGM), 45060 Orl\u00e9ans, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0818-2836","authenticated-orcid":false,"given":"Juan Jose","family":"Galiana-Merino","sequence":"additional","affiliation":[{"name":"Department of Physics, Systems Engineering and Signal Theory, University of Alicante, Crta. San Vicente del Raspeig, s\/n, 03080 Alicante, Spain"},{"name":"University Institute of Physics Applied to Sciences and Technologies, University of Alicante, Crta. San Vicente del Raspeig, s\/n, 03080 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Enrico","family":"Tubaldi","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XQ, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0908-1436","authenticated-orcid":false,"given":"Dragos","family":"Toma-Danila","sequence":"additional","affiliation":[{"name":"National Institute for Earth Physics, Calugareni 12, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8909-6285","authenticated-orcid":false,"given":"Sergio","family":"Molina","sequence":"additional","affiliation":[{"name":"Department of Applied Physics, University of Alicante, Crta. San Vicente del Raspeig, s\/n, 03080 Alicante, Spain"},{"name":"Multidisciplinary Institute for Environmental Studies, University of Alicante, Crta. San Vicente del Raspeig, s\/n, 03080 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2691-8875","authenticated-orcid":false,"given":"Alireza","family":"Kharazian","sequence":"additional","affiliation":[{"name":"Multidisciplinary Institute for Environmental Studies, University of Alicante, Crta. San Vicente del Raspeig, s\/n, 03080 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3770-5157","authenticated-orcid":false,"given":"Francesca","family":"Bozzoni","sequence":"additional","affiliation":[{"name":"European Centre for Training and Research in Earthquake Engineering (EUCENTRE), 27100 Pavia, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Barbara","family":"Borzi","sequence":"additional","affiliation":[{"name":"European Centre for Training and Research in Earthquake Engineering (EUCENTRE), 27100 Pavia, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefan Florin","family":"Balan","sequence":"additional","affiliation":[{"name":"National Institute for Earth Physics, Calugareni 12, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,6,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Doebling, S.W., Farrar, C.R., Prime, M.B., and Shevitz, D.W. 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