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L'onda d'urto della violenta eruzione del vulcano sottomarino nel Pacifico è arrivata nella serata di ieri, sabato, fino in Svizzera ed è stata rilevata come un' oscillazione della pressione atmosferica da tutti i nostri barometri.
La variazione della pressione atmosferica registrata ieri
È quanto ha indicato ha indicato oggi MeteoSvizzera, dai cui grafici si constata una variazione netta e molto breve della pressione tra le 19.00 e le 21.00. La compressione e la successiva dilatazione dell'aria indica "il passaggio dell'onda d'urto dell'eruzione" in Svizzera, afferma l'Ufficio federale di meteorologia e climatologia.
L'eruzione vulcanica è stata così potente da essere percepita come un rumore di un tuono lontano fino alle isole Figi, che si trovano a oltre 800 km di distanza, e in Cile ha provocato uno tsunami sull'arcipelago di Tonga e determinato onde anomale che hanno raggiunto le coste del Pacifico dal Giappone agli Stati Uniti.
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