Chris Cantell Discusses Science: Koga zemjata se trese by Zivka Deleva

Istrauvanjata nabljuduvaa ogromno zemjotresno dvienje vo poslednite 10 dena. Poveke od 600 potresi se inat poveke od nebini za oblasta okolu centralen Oregon, a duri i geolozite ne se sigurni za potekloto na ovoj priroden fenomen. Ima dva vida zemjotresi, tektonski, kako rezultat na dvienjeto na granicite na ploata na Zemjata, i vulkanski, priineti od magmata vo vulkanite. A to e udno za zemjotresite vo Oregon? Pa, poslednite 8 tresenja ne se nitu vulkanski, nitu tektonski, zatoa to toa se sluuva na sredinata od plocata a ne na nejzinite granici. "Vredi da se nabljuduva," izjavi Robert Dziak, marinec geolog koj vri istrauvanja vo Oregon. Lugeto vo Oregon, moe da smetaat deka e korisno isto taka. Tresenjeto, raspukuvanjeto na zemjata, poarite, kolapsot na zgradite, tetite na optata sopstvenost, pa duri i Cunami, ova se samo nekolku od monostite od zemjotresnata bura. Spasuvanjeto na milioni ivoti niz celiot svet e glavnata vel na istrauvaite, geolozite i ininjerite. Da se razbere zemjotresot e porakata na godinenata Nacionalna konferencija za zemjotresi koja ke se odri od 22 do 26 april vo Sietl. So cel da se sprei napadot od prirodna katastrofa, ne samo amerikanskite vlasti ke se sretnat da gi prodiskutiraat programite za zemjotresi vo javniot i privatniot sektor. Za sreka, ovonedelniot zemjotres ne predizvika nikakva teta ili povredi. Od druga strana, lugeto sakaat da nauat od prethodnite katastrofi. Kako dodatok, mnogu web stranici vi nudat soveti to i kako da pravite pred i posle zemjotres. Dobro e da se znae to da se pravi koga ke zapone zemjotresot. No ute podobro e da se ivee vo siguren region, kade ima zanemarliv rizik od zemjotres. Kako i da e, ne postoi nikakva garancija...

related story: http://www.sciencedaily.com/releases/2008/04/080413184801.htm

by Zivka Deleva for PocketNews (http://pocketnews.tv)

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edited by Zuzana Lakostikova