Tsunami ndi mndandanda wa mafunde opangidwa ndi kusamuka kwa madzi ambiri m'madzi, nthawi zambiri m'nyanja kapena nyanja yaikulu. Chithunzi pamwambapa ndi lingaliro la ojambula la megatsunami.
Asayansi akufotokoza za tsunami yachilendo.
Phunziro latsopano lafalitsidwa m'magaziniyi Nature ikufotokoza njira yomwe idatulutsa ndikufalitsa tsunami yachilendo kutsatira kuphulika koopsa kwa Hunga Tonga-Hunga Ha'apai ku Tonga koyambirira kwa 2022.
Tsunami yomwe inachitika pambuyo pa kuphulika kwakukulu kwa phiri lophulika la Hunga Tonga-Hunga Ha'apai pa Januware 15, 2022, asayansi akuganiza kuti inali yodabwitsa chifukwa idafika padziko lonse lapansi, kufalikira mwachangu, kutalika kwa mafunde mosayembekezeka, komanso kufalikira kwamphamvu kwamphamvu. nthawi yosamveka.
“Kuphulika koopsa kwa phiri lophulika la Hunga Tonga-Hunga Ha'apai ku South Pacific kunachititsa kuti mafunde a mumlengalenga awonekere komanso tsunami yapadziko lonse yothamanga kwambiri ndipo inachititsa kuti madera akutali awonongeke. Aka kanali koyamba kuti tsunami yoyambitsidwa ndi mapiri ophulika padziko lonse lapansi ilembedwe padziko lonse lapansi ndi zida zamakono, zapadziko lonse lapansi, motero zimapatsa mwayi wapadera wofufuza zomwe zimachitika pakulumikizana kwamadzi ndi mpweya pakupanga ndi kufalitsa kwa tsunami" akufotokoza Rachid Omira, wolemba woyamba. wofufuza ku Instituto Dom Luiz, Faculty of Sciences ya University of Lisbon (Portugal).
Pakafukufukuyu, gulu lofufuza linayang'ana deta ya satelayiti, mlingo wa nyanja, ndi mlengalenga kuchokera padziko lonse lapansi ndipo linagwiritsa ntchito mawerengero ndi ma analytical zitsanzo kuti asonyeze kuti tsunami inayambika chifukwa cha mphamvu yokoka yokoka yomwe inapangidwa ndi kuphulika kwa phiri la volcano. kuti inayenda kangapo padziko lonse lapansi. Pomaliza, asayansi amafotokoza bwino za tsunami yomwe idawonedwa padziko lonse lapansi ndikupanga malingaliro okhudzana ndi ngozi.
Rachid Omira anawonjezera kuti: “Chinthu chovuta kwambiri pophunzira za tsunami ya ku Tonga chinali kufotokoza mochulukira zinthu zonse zomwe zachitika pa tsunami zomwe zinali zosiyana kwambiri ndi za tsunami wamba,” akuwonjezera motero Rachid Omira, ponena kuti: “Mafunde a mumlengalenga othamanga kwambiri amatha kusangalatsa nyanja ndi kupopa madzi. mphamvu m'menemo inali kufotokozera kwathu kwa tsunami iyi yomwe "inalumpha" kuchokera kunyanja kupita ku ina ndikufika ku gombe la Portugal maola 10 kale kuposa momwe timayembekezera".
Reference: "Tsunami yapadziko lonse ya Tonga yofotokozedwa ndi gwero lamlengalenga lomwe likuyenda mwachangu" ndi R. Omira, RS Ramalho, J. Kim, PJ González, U. Kadri, JM Miranda, F. Carrilho, ndi MA Baptista, 13 June 2022, Chilengedwe.
DOI: 10.1038/s41586-022-04926-4
