Ka taƙaita labarin:  Masana kimiyya sun tabbata cewa za a girgiza California da girgizar ƙasa mai ƙarfi a cikin shekaru 30 masu zuwa. Yanzu sun ce hadarin girgizar kasa mai karfin gaske ya fi abin da ake tsammani. Yiwuwar girgizar kasa mai girman 8 da za ta afkawa jihar a cikin shekaru uku masu zuwa ya tashi zuwa kashi 7 daga kashi 4.7 bisa dari, musamman saboda masana kimiyya sun yi la'akari da yiwuwar cewa ɓarna da yawa na iya girgiza lokaci guda, suna sakin makamashin girgizar ƙasa wanda ke haifar da babbar lalacewa. Duk da cewa hadarin girgizar kasa mai karfin gaske ya fi yadda aka kiyasta a baya, amma akwai yiwuwar - fiye da kashi 99 cikin dari - cewa California za ta girgiza da girgizar kasa mai girman 6.7 kwatankwacin girman bala'in Northridge na 1994. Wani sabon rahoto na binciken ilimin kasa na Amurka ya kara yiwuwar girgizar kasa mai karfin maki 8 ta afkawa California a cikin shekaru 30 masu zuwa. A sama, hoto na wani overpass da ya rushe a cikin 1994 magnitude-6.7 Northridge girgizar kasa. Yiwuwar girgizar kasa mai girman Northridge ta ɗan fi girma a Arewacin California fiye da Kudancin California - kashi 95 cikin ɗari da kashi 93 cikin ɗari, a cewar wani rahoto da Hukumar Kula da Kasa ta Amurka ta fitar a ranar Talata. 'California ƙasa ce ta girgizar ƙasa, kuma mazauna yakamata suyi rayuwa kowace rana kamar zata iya zama babbar rana,' in ji masanin ilimin kimiyyar ƙasa na USGS kuma babban marubucin Ned Field. Sabbin lissafin girgizar kasa sun yi daidai da binciken da USGS ta bayar a shekarar 2008. A lokacin, masana kimiyya sun kuma ƙayyade cewa California tana fuskantar kusan haɗarin fuskantar girgizar ƙasa mai girman Northridge. Sabon rahoto ya hada da sabbin wuraren da aka gano da kuma yiwuwar girgizar kasa na iya tsalle daga kuskure zuwa kuskure. Domin wannan sanin, yiwuwar a yi wata babbar girgizar ƙasa - mai ƙarfin awo 8 ko kuma fiye da haka - a cikin shekaru 30 masu zuwa ya ƙaru. Akwai damar kashi 93 cikin dari na girman 7 ko mafi girma da ke faruwa a cikin wannan lokacin da kuma damar kashi 48 cikin dari na girman 7.5 - kama da ƙididdigar da ta gabata. Dubban girgizar kasa a kowace shekara ta afkawa California, sandwiched tsakanin biyu daga cikin manyan duniya tectonic faranti, da Pacific da kuma Arewa...
Sabon rahoton binciken ilimin kimiyyar kasa na Amurka ya kara yiwuwar girgizar kasa mai girman 8 a cikin shekaru talatin masu zuwa zuwa kashi 7 cikin dari, daga kashi 4.7 cikin dari.