Dad badan, waxay yihiin halista ugu weyn ee aadanaha, xitaa kahor isbedelka cimilada. Taasina waa in xooggeeda burburka ay tahay mid ay ku dhammaan karto ... gabi ahaanba wax walba, maalmo yar gudahood. Laakiin ha walwelin: in kasta oo ay jiraan ku dhowaad labaatan Dunida, xilligan ma jiro mid innaga ina khuseeya, xitaa ma ahan kuwa ugu caansan dhammaan, midka loo yaqaan magaca Yellowstone.
Aan xoogaa ka hadalno supervolcanoes ee dunida.
Supervolcanoes had iyo jeer way i xiiseynayaan aniga, laakiin maahan awoodda ay yeelan karaan, laakiin da'da ay jiraan darteed. Ku sii wadida Yellowstone, waxaa lagu qiyaasaa in yaabkan dabiiciga ah ee cajiibka ah uu qarxay markii ugu dambeysay 640 kun sano ka hor, 640 kun !! Taasi miyaanay ahayn tiro naxdin leh? Hadday xaqiiqadani tahay mid lala yaabo, way ka sii ogaataa taas qarxa ugu weyni wuxuu ahaa 2 milyan oo sano ka hor. Waxba ma jiraan!
Laakiin ... maxaan ugu yeernaa supervolcano? Kuwani waa volcanoes oo leh qolka magma kumanaan jeer ka weyn kan caadiga ah hoostiisa., taas oo macnaheedu yahay haddii ay toosto, inay samayn lahayd wax aad u xoog badan, oo kumanaan kiiloomitir kilomitir oo walxaha u diraya jawiga. Waxyaalahaas oo dhami waxay noqon doonaan in wax laga beddelo muuqaalka ku xeeran, marka lagu daro cimilada. Xaqiiqdii, qarxiskii ugu dambeeyay ee Yellowstone waxaa la rumeysan yahay inuu mas'uul ka yahay Da'da ugu dambeysa.
Marka laga soo tago Yellowstone, waxaa jira volcano kale oo Ameerika ku yaal oo ku yaal meelo kala duwan oo adduunka ah, sida:
- Harada Toba (Sumatra)
- Gobolka volcanic ee Taupo (New Zealand)
- Caldera Garita (Colorado, USA)
- La Pacana Caldera (Chile)
- Caldera Aira (Jabbaan)
Sidii aan nidhi, in kastoo ay jiraan dhawr, lama filayn firiiric weyn
Maxay kula tahay Ma ka ogtahay waxyaalahan kale ee waaweyn?