Gungwa Nyos muCameroon - chete kune vatashanyi vakanyanya

Gungwa reNyos muCameroon rakaumbwa makore 400 apfuura nekuda kwemhepo inoputika, apo magma yakabuda kubva mugomba risina chigadziko yakazara nemvura yepasi. Iyi chikamu chenyika inobatwa nemakomo ane makomo. Imwe dziva yakazara yakazadza iyo yakagadzirwa. Kwenguva yakareba gomo racho raifungidzirwa risingaperi. Pasinei nemafungiro akanaka anosvinudzwa kubva kumahombekombe egomo rino refu-gomo, vashanyi havana kutarisa pano. Misha mishomanana chete yaiva pedyo negungwa, iro rinopfuura mamita ane chiuru pamusoro pegungwa.

Mamiriro acho akachinja muna 1986. Nezvishoma zvishoma (mamita 1400 murefu uye 900 muhupamhi), dziva muCameroon rakataurwa nenyika yose. Pakupera kwaAugust, vanenge vagari vemunharaunda yeFang, Cha, Subum naNios vakafa usiku hwose. Kwakange kusina mhuka dzemhuka, kwete shiri, kwete kunyange zvipembenene. Kunyangwe zvinomera pamhenderekedzo yegungwa zvakasvibira uye zvakaratidzika zvakaoma. Masayendisiti akadana chiitiko chacho "njodzi dzinogadziriswa," uye vanhuwo zvavo vakatanga kutumidza Nyos "muurayi gungwa." Saka chii chakaitika musi iwoyo unouraya musi waAugust 21,.

Pamitumbi yevanopfuura 1 500 vakafa, pamwe chete nemazana masere akakuvara, blisters yakanyorwa. Izvi zvakaita kuti vatsvakurudzi vafungisise kuti gomo racho rakadzokazve. Asi chokwadi chakanga chiri chinonakidza zvikuru. Gungwa reNyos muCameroon rinonyatsoputika, uye carbon dioxide inoramba ichiyerera kubva mumakona ayo uye mamwe mapukisi makuru mumvura ayo . Inounganidza muzvikamu zvepasi. Kuongororwa kwemvura yakabviswa kubva kwakadzika kwakaratidza kuti pakarepo mushure mekuwirwa nenjodzi, yakanga yakasimudzwa ne CO ₂ , methane uye helium. Asi chikamu cheshumba chegasi dzine chepfu (96%) chakanga chichiri carbon dioxide.

Pakupera kwezhizha munharaunda ino ndiyo nguva yemvura. Zvingangodaro, mvura inotonhorera uye yakaoma, inounzwa nemvura uye mvura zhinji, inoyerera neLake Nyos. Yakanga yakawanda kwazvo zvokuti yakazadza zvachose pamusoro penzvimbo yemvura, ichiita nzvimbo yakasara. Mumvura yakadzika, mvura inodziya yakazara negasi ine chepfu yakasara. Misiyano muhuwandu hwezvigadziro ndeyekukonzera, izvo zvakakonzera kukanganisa kwemakemikari. Mune manheru eAugust 21, mhepo yakasimba yekuchamhembe yakasimuka, iyo inotungamirira mvura inonaya kumaodzanyemba. Izvo zvitsva zvitsva zvakasvinudzwa zvakatanga pakarepo kusunungura gesi. Tinoona zvakadaro kuburikidza ne uncorking bhodhoro Ku na soda. Ndizvo chete zviyero zvezvaiitika zvaive zvakakura.

Somugumisiro, gungwa reNyos muCameroon rave rakazara mumhepo. Iyo gasi rakapukunyuka kuenda kune rusununguko rakatora simba, semugumisiro wekushisa kwemhepo kwakaderera kusvika kumadhigiri gumi mumushure memasekondi. Mibvu dzakanga dzakawanda kwazvo zvokuti dzakabereka tsunami shoma yakazara kumaodzanyemba. Uye kumaodzanyemba kunotonhora kunotyisa kunobvira mumipata, kutakura rufu kune zvisikwa zvose zvipenyu.

Iye zvino gungwa Nyos muCameroon rinoratidzika rakanaka uye rakanaka. Asi vashanyi vauya pano chete boka rimwe chete. Ava ndivo avo vanoda kufadza mitsipa yenyu. Mushure mezvose, zviyero zvitsva zvemvura, zvakagadzirwa muna 1992, zvakaratidza kuti CO ₂ yakatanga kutenderera mukati mezvikamu zvepasi pegungwa. Ndiani anoziva kuti mamiriro ezvinhu ezvisikwa achabudirira sei, uye iyo inoparadza makemikari inotangira munguva yemberi iri pedyo here?