Lub npe niaj hnub no, Mount St. Helens, yog muab rau lub roob hluav taws kub xyoo 1792 los ntawm seafarer thiab explorer Captain George Vancouver ntawm British Royal Navy. Nws tau muab nws lub npe hu ua kev qhuas ntawm tus khub hauv tebchaws Alleyne Fitzherbert, uas tuav lub npe 'Baron St. Helens'.
Vim li cas Mount St. Helens nyob qhov twg?
Mount St. Helens, nyob hauv Washington State, yog lub roob hluav taws kub tshaj plaws nyob rau hauv Cascade Range, thiab nws yog qhov feem ntau ntawm cov hluav taws kub sib txuas hauv Teb Chaws Asmeskas kom tawg nyob rau hauv yav tom ntej. … Helens thiab lwm lub roob hluav taws nyob rau hauv Cascades arc vim yog qhov cuam tshuam ntawm Juan de Fuca phaj tawm ntawm ntug dej hiav txwv sab hnub poob ntawm North America.
Vim li cas Mt St Helens tawm ntawm kab?
Helens nyob sab nraum lub ntsiab kab ntawm Cascade Arc ntawm volcanoes. Lub pob zeb loj heev hauv av tsim qee qhov 20-30 mais ntawm txoj kab uas hla, hu ua Ntsuj Plig Lake batholith, zoo li tau hloov magma thiab qee cov pob zeb yaj sab nraum lub arc thiab mus rau sab hnub poob, ua rau thaj tsam lub roob hluav taws kub tshaj plaws.
Yuav ua li cas ntawm Mt St Helens?
Helens tawg. Thaum 8:32 teev sawv ntxov PDT, Mount St. Helens, lub ncov roob hluav taws nyob rau sab qab teb sab hnub poob Washington, raug kev kub ntxhov tawg loj heev, tua 57 tus neeg thiab ua rau qee qhov 210 square mais ntawm hav zoov.
Puas Mt St Helens yog supervolcano?
Mt. Saint Helens tsis yog lub roob hluav taws tshaj plaws hauv Cascades los tsim qhov "supervolcanic" eruption. Nws tau nquag nquag dhau lawm10,000 xyoo dhau los, tab sis feem ntau zoo li me me, los ntshav tawm cov khoom nquag nyob rau lub sijhawm no.
