nguJack Lee, i-American Geophysical Union
Uthotho lweenyikima kunye neenyikima emva koko zashukumisa indawo yaseRidgecrest eSouthern California ngo-2019. Inzwa yeacoustic esasazwayo (DAS) kusetyenziswa iintambo zefiber-optic zenza i-high-resolution subsurface imaging, enokucacisa indawo ejongweyo yokukhulisa inyikima.
Ubungakanani bokushukuma komhlaba ngexesha lenyikima kuxhomekeke ngamandla kwiimpawu zamatye nomhlaba ongaphantsi komhlaba. Uphononongo lwemodeli lucebisa ukuba ukushukuma komhlaba kwandiswe kwiindawo ezihlala intlenga, apho iindawo ezihlala abantu basezidolophini zihlala zihlala khona. Nangona kunjalo, umfanekiso wesakhiwo esikufutshane nomphezulu ojikeleze imimandla yasezidolophini kwisisombululo esiphezulu kube ngumngeni.
Yang et al. baye baphuhlisa indlela entsha yokusebenzisa i-distributed acoustic sensing (DAS) ukwakha umfanekiso ochanekileyo wesakhiwo esikufutshane nomphezulu. I-DAS bubuchule obuvelayo obunokuguqula obukhoyoiintambo zefiber-optickuluhlu lwenyikima. Ngokubeka iliso kwiinguqu kwindlela i-pulse elula esasazeka ngayo njengoko ihamba ngentambo, izazinzulu zinokubala utshintsho oluncinci kwizinto ezijikeleze ifayibha. Ukongeza ekurekhodweni kweenyikima, i-DAS ingqineke iluncedo kwizicelo ezahlukeneyo, ezinjengokuthiya eyona bhendi ikhwazayo kwi-Rose Parade ka-2020 kunye nokufumanisa utshintsho olukhulu kwitrafikhi yezithuthi ngexesha le-COVID-19 lokuhlala ekhaya.
Abaphandi bangaphambili baphinde baphinda baphinda baphinda baphinda baphinda bathatha i-10 yeekhilomitha zefayibha ukuze babone iinyikima emva kobukhulu be-7.1 Ridgecrest yenyikima eCalifornia ngoJulayi ka-2019.
Kuphononongo olutsha, abaphandi bahlalutya idatha ye-seismic eqhubekayo eyenziwa yi-traffic. Idatha ye-DAS ivumele iqela ukuba liphuhlise imodeli yesantya sokucheba esikufutshane nesombululo lwe-subkilometer ezimbini iiodolo zobukhulu obuphezulu kuneemodeli eziqhelekileyo. Lo mzekelo udize ukuba kubude bosinga, iziza apho iinyikima emva kweenyikima zivelise intshukumo ethe kratya yomhlaba ngokubanzi ihambelana nalapho isantya sokucheba besisezantsi khona.
Imaphu elolu hlobo ilungileyo yengozi yenyikima inokuphucula ulawulo lomngcipheko wenyikima ezidolophini, ngakumbi kwizixeko apho uthungelwano lwefiber-optic lunokuba sele lukhona, ababhali bacebisa.
Ixesha lokuposa: Jun-03-2019