Yaya aka shirya Don Mu Ga Babban?
Shin Seattle ya shirya babban girgizar kasa? Bisa ga girgizar kasa da tsunami da ke fama da mummunan girgizar kasa a kasar Chile, an gano wani abu mai mahimmanci, wanda ya kasance mai tattalin arziki, yana da yawa a Arewa maso Yamma, yana tunanin yadda aka shirya garuruwansu da garuruwansu don babbar girgizar kasa.
Faults
Cascadia Fault (ko kuma Cascadia subduction zone, don amfani da kalmar mafi daidai) gudanar kawai daga bakin teku daga arewacin tip na tsibirin Vancouver bayan Seattle da Portland zuwa arewacin California.
Masana kimiyya sunyi imanin wannan ta'addanci tactonic na iya haifar da manyan girgizar asa, zane-zane 9.0 a kan sikelin Richter, kuma akwai kimanin kashi 40 cikin dari na irin wannan tashin hankali da ke faruwa a cikin shekaru 50 masu zuwa. A lokacin da babu wata hanyar da za ta hango lokacin da wannan girgizar ƙasa ta faru, wannan ne kawai mai yiwuwa. Kuma saboda laifin da aka yi a kan iyakar, girgizar kasa ta Cascadia mega-quake tana da babbar damar samar da babban tsunami.
Kwanan nan, masana kimiyya sun gano karami, rashin kuskuren da ke gudana a karkashin birnin Seattle kanta, wanda ake kira Seattle Fault. Wannan kuskure ba shi da wataƙila ya haifar da girgizar ƙasa mai sauƙi sama da 8.0 amma zai iya ƙara lalacewar Seattle saboda kusanci. Wannan kuskure yana cikin ɓangare na ɓangarorin rashin kuskure, ciki har da Tacoma Fault da Olympia Fault, kowannensu yana fuskantar haɗarinsa ga sassa daban-daban na yankin.
Damawa Mai Ruwa
Wani tashin hankali a kan laifin Cascadia zai iya haifar da tsunami har zuwa mita 100.
Yayin da yawancin Seattle an daukaka sama da mita 100, raƙuman ruwa da yawa zasu shafe yankunan bakin teku da kuma halakar da gado da yawa wadanda suka haɗa kai da Seattle tare da duniyar waje, wanda zai iya haifar da rikicin agajin jin kai yayin dubban duban iya barwa ba tare da abinci ko ruwan sha ba. kwanaki.
Wani mummunan girgizar kasa a kan Seattle Fault zai iya zama mafi yawan gaske ga birnin, saboda mummunar zurfin kuskuren da kusanci kusa da birnin.
Ɗaya daga cikin binciken ya annabta cewa girgizar kasa na 7.0 a kan Seattle Fault zai hallaka 80 gadoji a yankin Seattle. Shirin binciken ya lissafa yawan mutuwar mutane fiye da 1,500 da 20,000 wadanda suka ji rauni sosai. Babban lalacewar zai faru da tashar jiragen ruwa, tashar jiragen ruwa, gine-gine, da asibitoci. Hanyar Wayar Wayar Alaskan Way mai sauƙi zai sauko. Babban man fetur na babban motsi wanda ke tafiya ta wurin ƙasa mara kyau a Renton zai iya rushe. Yankunan Seattle da aka gina a kan tashe-tashen hankula (Wuri na Pioneer da kuma mai yawa daga cikin ruwa) zai iya ganin manyan lalacewar.
Yaya Shirye-shiryen Ne Seattle?
A shekara ta 2010, masanin girgizar kasa mai suna Peter Yanev ya wallafa wani edita a cikin jaridar New York Times mai suna Seattle domin ya kasance da talauci sosai don babbar girgizar ƙasa. Ya tabbatar da cewa yawancin girgizar kasa a Arewa maso Yamma ya jawo hankulan gine-gine fiye da biranen San Francisco da Los Angeles. A cewar Yanev, "birane na Birtaniya ta Arewa suna cike da gine-ginen gine-ginen sassa da ƙananan garkuwoyi. A cikin girgizar ƙasa mai yawa, yawancin gine-ginen yanki na gine-ginen zai watsi da raguwa. "Rob Witter, wani masanin binciken Oregon ya gaya wa Oregon," yawan yawan lalacewar zai zama maras tabbas.
Mutane ba za su kasance a shirye don wannan ba. "
Rashin girgizar kasa na 2001 ya zama wani abu ne na kira gagarumar kira ga Seattle, inda ya karfafa makamashi don sake gina gine-ginen da kuma gine-gine mafi girma na gari. Har ila yau, Harbourview, wanda ke tsakiyar yankin, ya sake dawowa. An gina sababbin tashoshin wutar lantarki zuwa matsayi mafi girma. Duk da haka, shekaru goma bayan haka, hanyar Wayar Alaskan Way ta ci gaba, har zuwa gabar ruwa 520 har yanzu yana dauke da dubban motoci a kowace rana, kuma birnin ya dakatar da shirin sake gyaranta na gine-ginen gine-ginen da aka gina a 2008. Babban matsala shine kudade. Sake gyaran kowane tsarin haɗari a yankin zai kai daruruwan miliyoyin daloli. Masu mallaka ba su da kuɗin biyan kuɗi don gyaran gyare-gyare kuma jihar da gwamnatocin gida suna tsabar kudi. Duk da haka, farashin gyarawa ya fi kasa da farashin tattalin arzikin da ake sa ran ta girgizar kasa ta Seattle, a cikin bakar dala biliyan 33.
Menene Za Ka Yi?
Akwai ƙananan haɗari guda biyu ga mazaunin Seattle, gajere da kuma dogon lokaci. Haɗarin haɗarin lokaci shine rushewar gine-ginen tubali. Wadanda ke zaune ko aiki a cikin ɗayan waɗannan gine-gine na iya son yin la'akari da canjin wuri. Bugu da ƙari, wasu unguwa suna da hatsari fiye da wasu: Yankin Pioneer, Georgetown, da Interbay sun fi hatsari fiye da Capitol Hill, Northgate, ko Rainier Valley.
Yawancin barazana ba cutar ta jiki ba ce amma alamun cewa babbar girgizar kasa za ta rushe layin ruwa kuma ta yanke hanyoyi da ke kawo abinci cikin gari na kwanaki. Masana sun bayar da shawarar yin tarurruka na gaggawa a gidanka wanda zai sa ku da abinci, ruwa, da kayan tallafi na farko don akalla kwana uku. Birnin San Francisco ya kirkiro SF72.org mai kyau wanda yake jagorantar ku ta hanyar samar da kayan gaggawa.