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Very- and ultra-long-period seismic signals prior to and during caldera formation on La Reunion Island

Fontaine, Fabrice R.; Roult, G.; Hejrani, Babak; Michon, L.; Ferrazzini, V.; Barruol, G.; Tkalčić, Hrvoje; Di Muro, A.; Peltier, A.; Reymond, D.; Staudacher, T.; Massin, F.


Early detection of the onset of a caldera collapse can provide crucial information to understand their formation and thus to minimize risks for the nearby population and visitors. Here, we analyse the 2007 caldera collapse of Piton de la Fournaise on La Réunion Island recorded by a broadband seismic station. We show that this instrument recorded ultra-long period (ULP) signals with frequencies in the range (0.003–0.01 Hz) accompanied by very-long period (VLP) signals (between 0.02 and 0.50 Hz)...[Show more]

CollectionsANU Research Publications
Date published: 2019-05-30
Type: Journal article
Source: Scientific Reports
DOI: 10.1038/s41598-019-44439-1
Access Rights: Open Access


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