Igwe Fiber-optic nwere ike iwepụta maapụ ala dị elu

Usoro nke ala ọma jijiji na ala ọma jijiji na-ama jijiji na mpaghara Ridgecrest dị na Southern California na 2019. Nkesa acoustic sensing (DAS) na-eji eriri fiber-optic na-eme ka ihe ngosi dị elu dị elu nke dị n'okpuru ala, nke nwere ike ịkọwa ebe a na-ahụ anya na-amụba ala ọma jijiji.

Ego ole ala na-eme n'oge ala ọma jijiji na-adabere na njirimara nke nkume na ala dị n'okpuru elu ụwa. Ọmụmụ ihe nlere anya na-egosi na a na-amụba ịma jijiji ala n'ime ọdọ mmiri sedimentary, bụ ebe ndị mmadụ bi na ya na-anọkarị. Agbanyeghị, ịse ihe owuwu dị nso na gburugburu obodo mepere emepe na nnukwu mkpebi siri ike.

Yang et al. ewepụtala ụzọ ọhụrụ nke iji ihe mmetụta ụda ekesa (DAS) wulite onyonyo dị elu nke ihe owuwu dị nso. DAS bụ usoro na-apụta nke nwere ike ịgbanwe dị adịeriri-optic eririn'ime usoro seismic. Site n'ịleba anya mgbanwe na ka ọkụ ọkụ na-agbasa ka ha na-agafe na eriri, ndị ọkà mmụta sayensị nwere ike gbakọọ obere mgbanwe mgbanwe na ihe ndị gbara eriri gburugburu. Na mgbakwunye na ịdekọ ala ọma jijiji, DAS egosila na ọ bara uru n'ụdị ngwa dị iche iche, dị ka ịkpọ aha otu egwu na-eme mkpọtụ na Rose Parade 2020 na ikpughe mgbanwe dị egwu na okporo ụzọ ụgbọ ala n'oge iwu ọnụnọ n'ụlọ COVID-19.

Ndị na-eme nchọpụta n'oge gara aga megharịrị eriri 10-kilomita nke eriri iji chọpụta ịma jijiji na-esote oke 7.1 Ridgecrest ala ọma jijiji na California na July 2019. Usoro DAS ha achọpụtala ihe dị ka okpukpu isii karịa obere ihe mberede azụ azụ dị ka ihe mmetụta nkịtị mere n'oge ọnwa 3.

N'ime ọmụmụ ihe ọhụrụ ahụ, ndị nchọpụta nyochara data seismic na-aga n'ihu nke okporo ụzọ na-emepụta. Data DAS nyere ndị otu ahụ ohere imepụta ụdị ọsọ ịkwa akwa dị nso n'elu nwere mkpebi nke subkilometer abụọ dị elu karịa ụdị ụdị. Ihe nlereanya a kpughere na n'ogologo eriri ahụ, saịtị ebe oke mmiri ozuzo na-emepụta ọtụtụ mmegharị ala n'ozuzu ya kwekọrọ na ebe ike shiee dị obere.

Maapụ ihe ize ndụ seismic dị otú ahụ nwere ike imeziwanye njikwa ihe egwu seismic nke obodo mepere emepe, ọkachasị n'obodo ebe netwọk fiber-optic nwere ike ịdị adị, ndị ode akwụkwọ na-atụ aro.