<prompt> Fingqa isihloko: Ososayensi baqiniseka ukuthi iCalifornia iyothintwa ukuzamazama komhlaba okunamandla eminyakeni engu - 30 ezayo. Manje bathi ingozi yokuzamazama komhlaba okukhulu kungenzeka kakhulu kunalokho obekucatshangwa. Amathuba okuthi kuzamazame umhlaba ngesilinganiso sika - 8 kuleso sifundazwe eminyakeni engamashumi amathathu ezayo akhuphuka asuka ku - 4,7 aya ku - 7, ngokuyinhloko ngenxa yokuthi ososayensi baye bacabangela ukuthi kungenzeka ukuthi amaphutha amaningana azamazame kanyekanye, adedele amandla okuzamazama komhlaba okuholela ekubhujisweni okukhulu. Nakuba ingozi yokuzamazama komhlaba okukhulu iphakeme kunokulinganiselwa kwangesikhathi esidlule, kungenzeka kakhulu - kunamathuba angaphezu kwamaphesenti angu - 99 - ukuthi iCalifornia izothintwa ukuzamazama komhlaba okunamandla angu - 6,7 okucishe kufane nenhlekelele yaseNorthridge ngo - 1994. UBrace: Umbiko omusha we - U.S. Geological Survey uye wakhulisa amathuba okuba kube nokuzamazama komhlaba okungu - 8 esikalini sika - Richter okushaya iCalifornia eminyakeni engu - 30 ezayo. Ngenhla, isithombe sebhuloho eliphakeme eladilika ngo-1994 ngesikhathi sokuzamazama komhlaba okungu-6.7 eNorthridge. Ithuba lokuzamazama komhlaba okunjengokukaNorthridge laliphakeme kancane eNyakatho California kunaseNingizimu California - amaphesenti angu-95 uma kuqhathaniswa namaphesenti angu-93, ngokombiko okhishwe ngoLwesibili yi-U.S. Geological Survey. ICalifornia iyizwe elinezinkathi zokuzamazama komhlaba, futhi izakhamuzi kufanele ziphile nsuku zonke njengokungathi kungaba usuku lokuzamazama komhlaba okukhulu, kusho uNed Field, isazi sesayensi yokwakheka komhlaba sase-USGS nomlobi oholayo. Izibalo zakamuva zokuzamazama komhlaba zifana kakhulu nalokho okwatholakala yi-USGS ngo-2008. Ngaleso sikhathi, ososayensi babebuye banqume ukuthi iCalifornia yayibhekene nengozi ecishe ibe isiqiniseko sokuthola ukuzamazama komhlaba okunjengokukaNorthridge. Lo mbiko omusha wahlanganisa nezindawo ezisanda kutholakala ezinezimbobo kanye nethuba lokuthi ukuzamazama komhlaba kunganyakaza kusuka kwesinye isici kuya kwesinye. Ngenxa yalolu lwazi, amathuba okuba kube nokuzamazama komhlaba okuyinhlekelele - okunamandla angu - 8 noma ngaphezulu - eminyakeni engu - 30 eyalandela anda. Kunamathuba angamaphesenti angu-93 okuthi isivunguvungu esikhulu esingu-7 noma ngaphezulu senzeke phakathi nesikhathi esifanayo namaphesenti angu-48 okuthi isivunguvungu esikhulu esingu-7,5 - okufana nokulinganiselwa kwangaphambilini. Izinkulungwane zokuzamazama komhlaba unyaka ngamunye zihlasela iCalifornia, ephakathi kwamapuleti amabili amakhulu omhlaba, iPacific neNyakatho...  <response>: Umbiko omusha we - U.S. Geological Survey ukhulisa amathuba okuzamazama komhlaba okungu - 8 eminyakeni engamashumi amathathu ezayo ku - 7, kusukela ku - 4.7. 