Rashin ruwa na tsibirin Palos Verdes
 Rashin ruwa na tsibirin Palos Verdes |
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Yankin Palos Verdes, yankin bakin teku na yankin Los Angeles, yana da dogon tarihin rushewar ƙasa da motsi na ƙasa.[1] Yankin Palos Verdes yana da biranen Palos Verdos Estates, Rancho Palos Verds, Rolling Hills da Rolling Hills Estates, da kuma al'ummomin da ba a kafa su ba na Academy Hills da Westfield.
Tarihi
[gyara sashe | gyara masomin]Tun daga farkon shekarun 1920, an gano yankin a matsayin yanki mai haɗari, duk da haka gine-gine da ci gaba sun sami ƙarfi a cikin shekarun 1940 da 1950. A cikin 2024, an girgiza yankin Palos Verdes tare da wani zagaye na rushewar ƙasa.
Yankin Palos Verdes
[gyara sashe | gyara masomin]A watan Disamba na shekara ta 2022, an yi rikodin dutsen bakin teku a cikin Palos Verdes Estates (33.804, -118.394).
Rancho Palos Verdes
[gyara sashe | gyara masomin]Birnin Rancho Palos Verdes yana zaune a kan hudu daga cikin biyar na tsohuwar Altamira Landslide Complex, wanda kuma ake kira Greater Portuguese Bend Landslide Complexe. Complex ya ƙunshi yankuna huɗu masu tasowa a cikin tarihin birni: Abalone Cove Landslide; Beach Club Landslide; Klondike Canyon Landslide; da Portuguese Bend Landslide; kazalika da yankunan da ke waje da iyakar birnin na waɗanda ake kira landslides.[2][3]
1956 Rashin ƙasa na Portuguese Bend
[gyara sashe | gyara masomin]An kunna rushewar Bend na Portuguese a 1956, kafin a kafa Rancho Palos Verdes a matsayin birni. Farawa a watan Satumbar 1956 kuma ya ci gaba har zuwa farkon 1957, yankin ya sami rushewar ƙasa tare da gina hanya (ƙarin Crenshaw Boulevard, kudu da Crest Road) tare da saman tsohuwar rushewar ƙasar. [4] Yankunan da abin ya shafa sun kasance daga kadada da yawa zuwa kusan murabba'in kilomita biyu Wani bidiyon bidiyo na 1958 ya nuna tasirin rushewar ƙasa: 140 daga cikin gidaje 170 a yankin sun lalace ko kuma sun ƙaura. [4]
A shekara ta 1961, masu gidaje na yankin sun shigar da kara a kan Los Angeles County kuma sun sami sasantawa na kusan dala miliyan 10. [5]
Abalone Cove Slide
[gyara sashe | gyara masomin]From 1974 to 1978, an 80 acre landslide occurred in the Abalone Cove area. The lower part of the landslide started to move in February 1974.[6] The "Abalone Cove Slide" was moving so slow that geologists did not verify that it was an actual slide until 1976, after it had damaged roughly twenty homes. It is estimated that the landslides damaged nearly 50 homes and depressed property values.[7]
A shekara ta 1978, mazauna sun lura da tsagewa a kan Palos Verdes Drive South, kuma ɓangaren sama na slide na iya fara canzawa. A wannan shekarar, birnin ya ƙuntata gina sabbin gidaje a yankunan da rushewar ƙasa ta shafa, "Landslide Moratorium Map. " [6] Tun daga shekara ta 1980, ƙoƙarin sarrafa motsi na rushewar ƙasar ya haɗa da cire ruwan ƙasa daga rushewar.
Rashin Ruwa na Beach Club
[gyara sashe | gyara masomin]Rashin kwararar Portuguese Beach Club karamin kwararar ne a cikin yankin. A cikin 2024, mazaunan Seaview da Beach Club sun shigar da kara a kan Birnin Rancho Palos Verdes . A cikin 2024, yankin Beach Club ya sami babban lalacewa tare da Seawall Road, kimanin ƙafa huɗu zuwa biyar a fadin rairayin bakin teku, kuma mai yiwuwa a cikin yankin slide na bakin teku.
Rashin ruwa na Klondike Canyon
[gyara sashe | gyara masomin]An lura da Klondike Canyon don rushewar ƙasa. Sabuntawar motsi ya faru a shekara ta 1979, kuma an kirkiro Gundumar Geologic Hazard Abatement don nazarin rushewar Klondike Canyon a shekara ta 1982. [8]
Portuguese Bend da Seaview Landslide
[gyara sashe | gyara masomin]Yankin Bend Landslide na Portuguese yanki ne mai cike da rushewa wanda ke rufe kusan kadada 240. Tun daga bazara na 2023, an sami motsi na ƙasa da lalacewar da aka yi a cikin Portuguese Bend Beach Club, Portuguese Bend Community Association, da unguwanni na Seaview. An rufe hanyoyi masu yawa a cikin Abalone Cove Reserve, Filiorum Reserve, Forrestal Reserve, da kuma wuraren Portuguese Bend Reserve. A watan Satumbar 2024, sama da masu gidaje 200 sun kwashe yankunan Portuguese Bend da Seaview. Gidaje da yawa sun rushe ko kuma an sanya su marasa rai. Birnin ya ba da gargadi na kwashewa ga mazauna; rushewar ƙasa tana motsawa a kashi uku cikin huɗu zuwa ƙafa ɗaya a kowane mako.[9][10] Gas zuwa unguwar Portuguese Bend an rufe shi tun watan Agustan 2024. [10] Don dalilai na aminci, kamfanonin samar da wutar lantarki na cikin gida sun shirya dakatar da duk wutar lantarki ga mazauna da abin ya shafa. [11][10]
A ranar 3 ga Satumba, 2024, Gwamnan California Gavin Newsom ya ayyana dokar ta baci a Birnin Rancho Palos Verdes . Birnin ya tsawaita dakatarwar gini don yankunan da suka rushe [11] har zuwa Oktoba 2025 [10]
A lokacin bazara na 2024, jami'an birni sun sanar da mazauna cewa sun gano ƙarin motsi na ƙasa da rushewar ƙasa don Rancho Palos Verdes . Sabon, mai zurfi ya bayyana yana motsawa da sauri da zurfi, yana canza dabarun birni daga martani na taron rushewar ƙasa zuwa dabarun da ya fi girma don magance duk haɗarin rushewar ƙasar da batutuwa.[12]
Shirin Resilience na Ƙasa / Landscape na Ƙasar Portuguese
[gyara sashe | gyara masomin]A cikin 2023, FEMA ta ba da tallafin dala miliyan 23.3 ga Rancho Palos Verdes don aikin Resilience na Jama'a na Portuguese Mud / Landslide . Manufar tallafin ita ce inganta tsarin hakar ruwa na karkashin kasa da kuma shigar da sabbin tsarin hakar ruwan kasa.[13]
Rancho Palos Verdes Ƙungiyar Ayyuka ta Ƙasa
[gyara sashe | gyara masomin]RPV Landslide Complex Working Group yana haɗuwa kusan kowane mako don tsarawa, daidaitawa, da aiwatar da ayyuka don rage motsi na ƙasa da rage lalacewar al'umma da dukiya. Mambobin wannan rukuni sun haɗa da wakilan Gundumomin Abalone Cove Landslide Abatement; California Water Service; City of Rolling Hills; Klondike Canyon Landslide Abatment Gundumomi; Los Angeles County Department of Public Works Sanitary Sewer Maintenance; Los Angeles State Sanitation Gundumomin; Palos Verdes Peninsula Land Conservancy; Portuguese Bend Beach Club Homeowners Association; Portuguese bend Community Association; Seaview Residential Association; Southern California Gas Company; da mazaunan yankin.
Tuddan da ke yawo
[gyara sashe | gyara masomin]Rashin Rashin Ruwa na Triangle
[gyara sashe | gyara masomin]A shekara ta 1979, mazauna yankin Flying Triangle Landslide sun lura da tsagewa a cikin babbar hanyar da ke kaiwa ga unguwarsu. Yankin rushewar ya kai kimanin kadada 90 [14] kuma ya lalace kuma ya lalata gidaje da yawa. Masu gidaje da suka shafi sun sami kusan dala miliyan 16 a cikin kayan biyan diyya.[14]
A shekara ta 1987, an yi rubuce-rubuce a cikin Flying Triangle yankin sama da Portuguese Bend .
Shirin Rage Ragewa na Rolling Hills
[gyara sashe | gyara masomin]A cikin 2024, Majalisa Ted Lieu ya sami dala miliyan ɗaya don aikin Ragewa na Ragewa, wanda ake sa ran zai inganta kwararar ruwa da rage haɗarin ƙarin rushewa a cikin yankin Flying Triangle a cikin iyakokin birni.
Gidajen Rolling Hills
[gyara sashe | gyara masomin]Rollings Hills Estates yana kan gefen arewacin Palos Verdes Peninsula, wani yanki wanda ke da tarihin rushewar ƙasa.
Motsi na filin aiki na Ofishin
[gyara sashe | gyara masomin]A shekara ta 1997, ma'aikata a wani wurin shakatawa na ofishin Rolling Hills Estates sun ga ganuwar da ke rushewa da tituna masu laushi kuma dole ne a kwashe su.
Rashin ƙasa na Peartree Lane
[gyara sashe | gyara masomin]A ranar 8 ga Yuli, 2023, Peartree Lane Landslide ya lalata gidaje da yawa a cikin Rolling Hills Estates . [15] Gidajen gari a yankin sun fada cikin wani kwari. Wannan motsi na ƙasa na iya fara ne a cikin 2022.
Manazarta
[gyara sashe | gyara masomin]- ↑ McNulty, Dr. Brendan (June 2012). "Geology of the Palos Verdes Peninsula, Los Angeles CA: A Field Guide For the Non-Geologist". California State University Dominguez Hills, Department of Earth Science. Retrieved April 10, 2019.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedSharpJ - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedCouncilAgenda - ↑ 4.0 4.1 Linden, Karl Vonder (December 1989). "The Portuguese bend landslide". Engineering Geology. 27 (1–4): 301–373. Bibcode:1989EngGe..27..301L. doi:10.1016/0013-7952(89)90037-9.
- ↑ "Portuguese Bend Earth Flow". Archived from the original on 2013-02-17. Retrieved 2013-01-09.
- ↑ 6.0 6.1 Cite error: Invalid
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<ref>tag; no text was provided for refs namedCannC - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedSievertson - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedFEMA - ↑ 14.0 14.1 Cite error: Invalid
<ref>tag; no text was provided for refs namedTaylorR - ↑ Toohey, Grace; Solis, Nathan (July 11, 2023). "'Astonishing' collapse sends Rolling Hills Estates homes toward canyon floor". Los Angeles Times (in Turanci). Retrieved July 11, 2023.