Observation of Rayleigh-Lamb waves generated by the 2022 Hunga-Tonga volcanic eruption with the POLA detectors at Ny-Ålesund

Abstract The eruption of the Hunga-Tonga volcano in the South Pacific Ocean on January 15, 2022, at about 4:15 UTC, generated a violent explosion, which created atmospheric pressure disturbances in the form of Rayleigh-Lamb waves detected all over the globe. Here we discuss the observation of the Hu...

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Bibliographic Details
Published in:Scientific Reports
Main Authors: M. Abbrescia, C. Avanzini, L. Baldini, R. Baldini Ferroli, G. Batignani, M. Battaglieri, S. Boi, E. Bossini, F. Carnesecchi, M. Casula, D. Cavazza, C. Cicalò, L. Cifarelli, F. Coccetti, E. Coccia, A. Corvaglia, D. De Gruttola, S. De Pasquale, L. Galante, M. Garbini, G. Gemme, I. Gnesi, E. Gramstad, S. Grazzi, E. S. Haland, D. Hatzifotiadou, P. La Rocca, Z. Liu, L. Lombardo, G. Mandaglio, A. Margotti, G. Maron, M. N. Mazziotta, M. Mazzola, A. Mulliri, R. Nania, F. Noferini, F. Nozzoli, F. Ould-Saada, F. Palmonari, M. Panareo, M. P. Panetta, R. Paoletti, M. Parvis, C. Pellegrino, L. Perasso, O. Pinazza, C. Pinto, S. Pisano, F. Riggi
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2022
Subjects:
Medicine
R
Science
Q
Ny-Ålesund
Pacific
Tonga
Ny Ålesund
Spitsbergen
Online Access:https://doi.org/10.1038/s41598-022-23984-2
https://doaj.org/article/002b1f2986d741778b2c6b80634a5099
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Summary:Abstract The eruption of the Hunga-Tonga volcano in the South Pacific Ocean on January 15, 2022, at about 4:15 UTC, generated a violent explosion, which created atmospheric pressure disturbances in the form of Rayleigh-Lamb waves detected all over the globe. Here we discuss the observation of the Hunga-Tonga shock-wave performed at the Ny-Ålesund Research Station on the Spitsbergen island, by the detectors of the PolarquEEEst experiment and their ancillary sensors. Online pressure data as well as the results of dedicated offline analysis are presented and discussed in details. Results include wave arrival times, wave amplitude measurements and wave velocity calculation. We observed five passages of the shock wave with a significance larger than 3 $$\sigma$$ σ and an amplitude up to 1 hPa. The average propagation velocity resulted to be (308 ± 0.6) m/s. Possible effects of the atmospheric pressure variation associated with the shock-wave multiple passages on the cosmic-ray rate at ground level are also investigated. We did not find any significant evidence of this effect.

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