Kwabaningi, bayisongo esikhulu esintwini, ngisho nangaphambi kokushintsha kwesimo sezulu. Futhi amandla ayo okubhubhisa angokuthi angaqeda ... konke konke, ngezinsuku ezimbalwa. Kepha ungakhathazeki: yize kukhona cishe amashumi amabili eMhlabeni, okwamanje akekho okufanele asikhathalele, hhayi ngisho ethandwa kakhulu kunabo bonke, lowo owaziwa ngegama le-Yellowstone.
Ake sikhulume kancane ngayo izindabazingi wezwe.
Ama-supervolcanoe ahlala efuna ukwazi kimi, kepha hhayi ngenxa yamandla angaba nawo, kepha ngenxa yokuthi mdala kangakanani. Ukuqhubeka ne-Yellowstone, kulinganiselwa ukuthi lesi simangaliso semvelo esimangalisayo saqhuma okokugcina cishe eminyakeni eyizinkulungwane ezingama-640 edlule, izinkulungwane ezingama-640 !! Akuyona inombolo emangalisayo leyo? Futhi uma leli qiniso limangalisa, likwazi kakhulu lokho ukuqhuma okukhulu okudala kunakho konke bekuyiminyaka eyizigidi ezimbili edlule. Akunalutho!
Kepha… thina sikubiza ngokuthi i-supervolcano? Lezi yizintaba-mlilo ezinekamelo lamagma elikhudlwana izikhathi eziyizinkulungwane kunezinga elijwayelekile ngaphansi koqweqwe lwawo.Okusho ukuthi, uma ivuka, izokwenza ngodlame olukhulu kakhulu, ithumele izinkulungwane zamakhilomitha angama-cubic of matter emkhathini. Konke lokho kuzobe kungukuguqula indawo ezungezile, ngaphezu kwesimo sezulu. Eqinisweni, ukuqhuma kwakamuva kakhulu kweYellowstone kukholakala ukuthi yikhona okwenze i-Ice Age yokugcina.
Ngaphezu kwe-Yellowstone, kunezinye izintaba-mlilo eMelika futhi ezitholakala ezingxenyeni ezihlukahlukene zomhlaba, njenge:
- ILake Toba (iSumatra)
- Isifunda sentaba-mlilo iTaupo (New Zealand)
- ICaldera Garita (eColorado, e-USA)
- I-Caldera de La Pacana (eChile)
- I-Caldera Aira (Japan)
Njengoba sishilo, noma kunenqwaba, akulindelekile akukho ukuqubuka okukhulu.
Ucabangani? Ubuwazi lawa amanye ama-supervolcanoes?