Tšisinyeho ea lefatše e matla ea 7.5 e etsahetse ka Laboraro bosiu bosiu lik'hilomithara tse 185 ka boroa ho lihlekehleke tsa Loyalty. ka 6.08 pm nako ea lehae, la 5 Tšitoe.
Ba boholong sebakeng sa Vanuatu ba ile ba fana ka tlhokomeliso ea tsunami ea lehae, empa ho ea ka USGS ea Hawaii ha ho na temoso e teng Leoatleng la Pacific ho kenyeletsoa Guam le Hawaii.
Location:
- 168.2 km (104.3 mi) ESE ea Tadine, New Caledonia
- 254.4 km (157.7 mi) ESE ea W New Caledonia
- 298.9 km (185.3 mi) E ea Mont-Dore, New Caledonia
- 309.9 km (192.2 mi) E ea Dumba, New Caledonia
- 311.1 km (192.9 mi) E ea Noumea, New Caledonia
Ts'isinyeho ea lefats'e ea la 5 Tšitoe, 2018, M 7.5 ka bochabela ho New Caledonia ka boroa-bophirima ho Leoatle la Pacific e etsahetse ka lebaka la liphoso tse sa tebang kahare ho leoatle la Australia, ka bophirima ho South New Hebrides Trench e tšoaeang moeli oa poleiti lipakeng tsa Australia le lipoleiti tsa Pacific sebakeng sena. Mekhoa ea ho rarolla mathata e sa tobang e bonts'a phoso e etsahetse ka lebaka la phoso e tebileng e oelang leboea-bophirima kapa boroa-bochabela. Sebakeng sa ts'isinyeho ea lefats'e, poleiti ea Australia e leba leboea-bochabela bochabela ho leboea la Pacific ka sekhahla sa hoo e ka bang 78 mm / yr. Ho South New Hebrides Trench, Australia lithosphere li kopana le ho teba ka tlasa sejana sa Pacific, li theohela ka kobo ea kahare ebe li theha libaka tsa taolo ea New Hebrides / Vanuatu, ho tloha New Caledonia ka boroa ho ea lihlekehlekeng tsa Santa Cruz ka leboea, hole ea lik'hilomithara tse ka bang 1,600. Tšisinyeho ea lefatše ea la 5 Tšitoe 2018 e etsahetse haufi haholo le foro ena, 'me ka nqa bophirima feela, tikolohong ea tectonic eo ka linako tse ling e tsejoang e le "ho phahama ka ntle" moo poleiti e thellisang e qalang ho fetoha (ho atoloha) pele e teba ka seaparong. Sebaka, botebo, le tharollo ea metheo ea ts'isinyeho ea lefats'e ena kaofela li tsamaellana le ketsahalo e hlahang ka lebaka la phoso ea intraplate sebakeng sena se kantle sa phahama.
Le ha litšisinyeho tsa lefatše tsa boholo bona li hlalosoa ka mokhoa o tloahelehileng joalo ka limmapa, li hlalosoa ka nepo e le ho thellisa sebakeng se seholo sa liphoso. Liketsahalo tse tloaelehileng tsa ho etsa liphoso tsa boholo ba ts'isinyeho ea lefats'e ea la 5 Tšitoe 2018 hangata li boholo ba 75 × 30 km ka bolelele (bolelele x bophara).
Ts'isinyeho ea lefats'e ea la 5 Tšitoe 2018 ke ts'isinyeho ea lefatše ea M 6+ sebakeng sa likhoeli tse tharo tse fetileng, mme ke karolo ea tatellano ea liketsahalo tse qalileng ka la 29 Phato 2018 ka ts'isinyeho ea lefats'e ea M 7.1 e kenang ka bochabela. ea South New Hebrides Trench le lik'hilomithara tse ka bang 70 ka bochabela ho ts'isinyeho ea lefats'e ea la 5 Tšitoe 2018. Nakong ena ea nako, litšisinyeho tsa lefatše tse ka bang 140 M 4+ li tlalehiloe sebakeng sena ke USGS, litšisinyeho tsa lefatše tse matla haholo tse ka bochabela ho moeli oa poleiti. Ts'isinyeho ea lefats'e ea kajeno e etelletsoe pele ke metsotso e mene ke M 4 foreshock, e ka bang 6.8 km ho ea bophirima ho foro ea leoatle. Ho latellana ka mokhoa o ts'oanang ho etsahetse lipakeng tsa Mphalane-Tshitwe 13, ho leba leboea feela la liketsahalo tsa 2017 mme haholo-holo sebakeng sa Outer Rise. Ho latellana ha 2018 ho ne ho kenyelletsa liketsahalo tse fetang 2017 M350 +, ho kenyelletsa le liketsahalo tse supileng tsa M4 + (le 6 M1 +).
Sebaka sa Lihlekehleke tsa Loyalty se sebetsa ka thata seismism, mme sebaka se ka hare ho 250 km ea ts'isinyeho ea lefats'e ea December 5, 2018 se tšoere litšisinyeho tse ling tsa 24 tsa M 7+ lilemong tse lekholo tse fetileng. E kholo ka ho fetisisa e bile ts'isinyeho ea lefats'e ea M 8.1 ka Loetse 1920, e neng e le bohōle ba lik'hilomithara tse 230 ka leboea-bophirima ho ketsahalo ea kajeno, ka bochabela ho foro ea leoatle. Litšisinyeho tsa lefatše tse hlano ho tsena tsa M 7+ li etsahetse ka bophirima ho foro ea leoatle, ho kenyeletsoa ts'isinyeho ea lefats'e ea M 7.7 ka Mots'eanong 1995, 125 km ka boroa-bochabela, ts'isinyeho ea lefats'e ea M 7.1 ka Pherekhong 2004, 40 km ka boroa-bochabela, le M7.0 e boletsoeng pejana. .2017 litšisinyeho tsa lefatše ka Pulungoana 70, 2004km ho ea leboea-bophirima. Ha ho le e 'ngoe ea tsena e tsejoang hore e bakile tšenyo kapa lefu. Tšisinyeho ea lefatše ea Pherekhong 7.1 M 270 le eona e ne e le karolo ea tatellano ea liketsahalo tse ka bang 2003, ho qala ka Tshitwe 7.3. Ts'ebetso eo e ne e kenyelletsa litšisinyeho tsa lefats'e tse pakeng tsa lipolanete (ketsahalo e kholo ka ho fetesisa e bile tšisinyeho ea lefatše ea M 27 ka la 2003 Tšitoe 25. ) le litšisinyeho tse tloaelehileng tsa lefatše tse ka bophirima ho foro ea leoatle. Pakeng tsa la 2003 Tšitoe 3 le la 2004 Pherekhong 12 ho bile le litšisinyeho tsa lefatše tse 6 tsa M 2003+. Lenane la 2004-2004 le ile la qetella le shoele mathoasong a bohareng ba Pherekhong XNUMX.
SEO U LOKELANG HO SE NKA HO SEHLOOHO ENA:
- Tšisinyeho ea lefatše ea la 5 Tšitoe 2018 ke tšisinyeho ea lefatše ea botšelela ea M 6+ ho etsahala sebakeng sena likhoeling tse tharo tse fetileng, ’me ke karolo ea tatellano ea liketsahalo tse qalileng ka la 29 Phato 2018 ka sefofane sa M 7.
- Tšisinyeho ea lefatše e 5 e ka bochabela ho New Caledonia ka boroa-bophirimela ho Leoatle la Pacific e etsahetse ka lebaka la phokotso e sa tebang e tloaelehileng ka har'a lehlabathe la Australia, ka bophirimela ho South New Hebrides Trench e tšoaeang moeli o pakeng tsa Australia le Pacific plate sebakeng sena. .
- Setsing sa South New Hebrides Trench, Australia lithosphere e kopana le ho teba ka tlas'a letlapa la Pacific, e theohela ka har'a seaparo sa ka holimo ebe e theha sebaka sa New Hebrides / Vanuatu, se tlohang New Caledonia ka boroa ho ea Lihlekehlekeng tsa Santa Cruz ka leboea, sebaka se selelele. lik'hilomithara tse ka bang 1,600.
