Mashoko Anofadza NezveGomo St Helens

01 ye 05

Kutanga kuGomo reSt. Helens

Gomo reSt. Helens nderimwe rePacific Northwest kune makomo akawanda. Chikamu chezvinozivikanwa sePacific Rim of Fire, Gomo reStel Helens rinozivikanwa nekuda kwebasa rayo razvino uye rinopfuurira. Gomo re St. Helens pakati peCascade Mountain Range muWashington, munenge pakati pepakati peSeattle nePortland.

Gomo pacharo, pamwe chete nemhepo yakakomberedza nzvimbo, rakachengetwa seGomo reSt. Helens National Volcanic Monument. Nzvimbo iri mukati mechitubu iri kubvumirwa kutora nzira yake yekudzosa, ichiita ruzivo rwekudzidza rufaro kune vose masayendisiti nevanhu. Vashanyi kuGomo reStel Helens National Volcanic Monument vachawana vanoverengeka vanofarira nzvimbo dzevashanyi uye vazhinji vanoona maonero anoshamisa.

Munenge muna 1980 Kuparadzwa kweGomo reSt. Helens: Sequence of Events

Munenge muna 1980 Kuparara kweGomo reStelens: Zvinetso

Recent Mount St. Helens Chiitiko

Gomo reSt. Helens Chiitiko Kupfuura Nhoroondo

02 of 05

Munenge muna 1980 Kuparadzwa kweGomo reSt. Helens: Sequence of Events

Gomo re St. Helens rakasimuka pa8: 32 mangwanani PST musi wa18 Chivabvu 1980, ichiyeuchidza Pacific Pacific Northwest vagari nevanhu vanopoteredza nyika ye masimba ane simba uye asingadzorwiki. Zvisikwa zvemuviri zvekuputika kwakange kune ruzivo mune dzakawanda zvehurumende dzeUnited States, nemadota achiwira kure neAklahoma. Shanyira Gomo reSerfens iwe pachako kuti udzidze zvakawanda pamusoro pezvakaitika kare uye mamiriro ezvinhu epanguva ino.

Kurongeka kwezviitiko zvakaitika panguva yaMay 18 kuputika kweGomo St. Helens:

• Kudengenyeka kwenyika 5.1-magnitude
• Nzvimbo yepamusoro nechekupoteredza kwakatarisana nechokuchamhembe nechokuchamhembe kwechokuputika ichibva kure, zvichiita kuti pave nemhepo yakawanda yematombo, dope, uye matsime akazara makiromita 24 makiromita emupata
• Kusunungurwa kwakabuda kwekumanikidzwa kunobva mukati memhepo yakabhururuka kwakabudisa pfuti yemadota uye pumice

Kuenzanisa kwezviitiko zvinotungamirira kukwakuka: March - May, 1980

Izvo zvose zvakatanga musi waMarch 15, 1980, apo Gomo reSt. Helens rakatanga nguva yemaitiro ekuderera. Sezvo basa racho rakawedzera, gomo racho rakachengetedza isu rose pamucheto wezvigaro zvedu. Heino zvakakosha kubva kune zviitiko zvinotungamirira kusvika maMeyi 18 ekuputika, muzvinyorwa zvitsva.

May 17, 1980
Mutemo wekuchengetedza mitemo wakaperekedza anenge 50 motokari yemadzimai epfuma muDombo rekuRwanda kuti atore zvinhu.

May 7-13, 1980
Kuputika kwemafuti emvura uye madota kunobva muhombekombe. Kudengenyeka kwenyika kunokwana kusvika 4.9.

April 29, 1980
Vakuru vakuru vehurumende vakakumbira gavhuna kuti avhare nzvimbo yakawanda yakapoteredza volcano. Chirongwa chacho chakadaidza Red Zone (hapana kuwanikwa kwevanhu) uye Blue Zone (kusingakwanisi kuwana). Emergency services vakuru vakuru vanovhiringidzika nokuti vanhu vakaonekwa sevasingazivi ngozi yacho.

March 27 kusvika April 18, 1980
Kudengenyeka kwenyika uye kuputika kwemhepo kunowedzera uye kunowedzera panguva ino.

March 20, 1980
Kudengenyeka kwenyika yakakura 4.1, kusiyana nezvose zvakamboonekwa munzvimbo iyi, zvakaitika kumadokero kwakadziva kumadokero kwegomo reSt. St. Helens. Seismologists vakanga vasina chokwadi kana kudengenyeka kwenyika kwekutanga kana kuti kwete kwakabatana nemabasa ekuputika kwemhepo. Vakasarudza kuendesa mamwe maitiro seismometer kuitira kuti vaone zviri nani basa redu munguva yemberi.

March 15-19, 1980
Zvimwe kudengenyeka kwenyika zviduku zvakanyorwa, asi hazvizivikanwi sevanopedzisira vanyatsoitika kune zvinogona kuitika mumakomo.

Data Dhiyabhorosi: USGS / Cascades Volcano Observatory. Tarisa iyi web site kuti uwane nguva yakawanda.

03 of 05

Munenge muna 1980 Kuparara kweGomo reStelens: Zvinetso

Mhedzisiro yekupera kwema1980 kweGomo St. Helens yaisanganisira:

• Gomo reSt. Helens rakaderedzwa nemamita anopfuura 1 300 pakureba
• Mhepo ine mhepo yakabhururuka yakawira kure nemakiromita 930 kubva kure
• Izvo zvipembenene zvinoputika uye matope anoviga mupata weWallle kusvika kumadzika anenge makumi mashanu
• Kuputika kwakagara kwemaawa 9
• 57 vanhu vakarasikirwa noupenyu hwavo, kana kuti vachiri kuonekwa sevasipo
• 250 makiromita makiromita enyika yakange yakanganisa
• "Zvizhinji" mhuka dzakaurawa - inofungidzirwa mhuka zviuru mazana manomwe zvemhuka uye mamiriyoni e shiri, hove, uye zviduku zviduku
• Minor eruptions yakaenderera muna 1986

Chokwadi uye nhamba dzinowanikwa muchidimbu cheSUGS

04 of 05

Recent Mount St. Helens Chiitiko

Apo patinotanga kufunga kuti Gomo reStens Helens riri kugadzika pasi, mhepo inoputika mhepo kana kuti inoputika. Heino mhedziso yezvinoitwa muGomo reSt. St. Helens.

2005 kupa
Gomo reSt. Helens rinoenderera mberi richiwana mizinga yakaderera yekusimudzira, kusvitsa kunokonzerwa kwemafu uye magasi anoputika, zvigadzirwa zviduku zvehuni, uye kukura kwechivako chitsva chemukati mukati mekona.

March 8, 2005
Gomo reGomo reSt. St. Helens rakawana chiitiko chiduku chekuputika, nemafuta anokonzera-uye-ash ari kusvika kumusoro-soro anenge mamita 36 000 pamusoro pegungwa.

January 16, 2005
Kuputika kweputika kwakapararira madota uye matombo akareba semamita 1 mumugwagwa uye kunyura kumabvazuva kumakomo echokumabvazuva.

Gumiguru 11, 2004 kusvika zvino
Chinhu chitsva uye chakasiyana chakasvibiswa chakaonekwa; inoramba ichikura uye ichichinja.

Gumiguru 5, 2004
Iyo yakanyanya simba guru-uye-ash kuputika kubvira pakutanga kwekusagadzikana. Yakatora nguva inopfuura awa imwe chete. Mhangura yakasimuka kusvika anenge 3 700 m (12,000 ft) uye yakatangira kuchamhembe-kuchamhembe kwakadziva kumabvazuva. A light ash dusting yakawira mumaguta e Morton, Randle, uye Packwood, anenge makiromita 50 (30 mi) kure. Kusviba kwechiedza kwakapinda kumabvazuva kweGomo Rainier National Park, 110 km (70 miira) kuchamhembe kwakadziva kumabvazuva.

October 1, 2004
Bhuku duku rakaputika, rine madota maduku, akabudiswa kubva kune imwe nzvimbo kumaodzanyemba kwe 1980-86 lava dome

Svondo 23-25, 2004
Chimwe chivande chepasi, zvisinganyanyi kudengenyeka (zviduku kudarika ukuru 1) zvakatanga mangwanani emusi waSeptember 23, zvichisvika masikati makuru musi waSeptember 24, zvino zvakaramba kusvika masikati eSeptember 25.

Data Dhiyabhorosi: USGS / Cascades Volcano Observatory

05 of 05

Gomo reSt. Helens Chiitiko Kupfuura Nhoroondo

Sezvo makomo achienda, Gomo reStens rava duku. Makore akare akazivikanwa ekuputika kwemakomo akapararira makore anenge 50 kusvika makumi mana akapfuura, uye mhuka iyo yakaparadzana muna 1980 inongova nemakore 2200 chete. Vamwe vaIndia vePacific Northwest vakasiyana-siyana vachinzi Mount St. Helens "Louwala-Clough," kana kuti "gomo rekuputa." Zita remazuva ano, Gomo reSt. Helens, rakapiwa kukunda kwegomo muna 1792 naCaptain George Vancouver weBrithani Royal Navy, mutambi wegungwa uye anoongorora. Akaritumidza mukukudza mumwe munhu, Alleyne Fitzherbert, uyo akabata zita rinonzi Baron St. Helens uye uyo akanga ari panguva iyo Ambassador weBritain kuSpain. Vancouver yakatumidzawo dzimwe mimwe mitutu ine mhirizhonga muCascades - Mounts Baker, Hood, uye Rainier - kuBritain mauto ehurumende.

Pano pane zvakakosha zvebasa reGomo reSt. Helens mumakore ekupedzisira 2000:

Goi Rocks Eruptive Period

Inenge 1800 AD
Iyi nguva inoputika yakagara makore 100-150. Zviitiko zvinozivikanwa zvinosanganisira kuputika kwemhepo muna 1842, iyo yakateverwa ne extrusion yeGoat Rocks dome. Nhoroondo dzemazuva ano dzinoratidzira basa kakawanda muma1840 na1850, asi hazvisi izvo uye zvinopesana. Basa rokupedzisira rinokosha musati ra1980 raiva "utsi hwakaoma uye moto" muna 1857, kunyange zvazvo maduku maduku, kusina kusimbiswa kwakasimbiswa muna 1898, 1903, uye muna 1921

Kalama Eruptive Period

1479 kusvika 1482 AD
Iyi nguva inoputika yaisanganisira maviri ejections makuru emadota, uyewo maruva anoyerera uye kuvaka dome.

Sugar Bowl Eruptive Period

Inenge 800 AD
Gomo reSt. Helens rakagadziriswa nekubatanidzwa kwekuvaka dome, kuwedzera kwekupedzisira, uye kuputika kwemhepo panguva iyi yekupisa kwemhepo.

Castle Creek Eruptive Period

200 BC kusvika 300 AD
Basa guru munguva iyi inoiswa mune zvinokonzerwa nemadota, pyroclastic flow, uye maruva anoyerera.

Data Dhiyabhorosi: USGS / Cascades Obscatory Observatory: Mount St. Helens Eruptive History