Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Zvinhu zvakatevera kubuda zvinobva mumakomba akasiyiwa nokudonha kwevhu zvainyanya kuva matombo matsva emvura panzvimbo pezvimedu zvematombo anobva mumakomo akanga avapo. Matombo acho akaumba chimiro chakaita sefeni chakaumbwa nemashizha, marimi uye mapfupa. Zvikamu gumi nezvishanu zvakasiyana zve pyroclastic zvakaitika panguva yekuputika kwaMay 18, uye huwandu hwavo hwakazara hwaive 0.05 cubic miles (0.21 km3). Kuyerera kwemadhora kwaive kuchiri pa570 kusvika 790 ° F (300 kusvika 420 ° C) masvondo maviri mushure mekuputika. Kuputika kwechipiri kwemhepo inoputika kunotsigirwa nekupisa uku kwakagadzira makomba pamuganhu wekuchamhembe kwemadhora ekuyerera kwepyroclastic, kumahombekombe ekumaodzanyemba kweLake Spirit, uye pamwe nechikamu chepamusoro cheNorth Fork Toutle River. Uku kuputika kwemhepo kwakapfuurira nguva nenguva kwamavhiki kana kuti mwedzi pashure pokuiswa kwokuyerera kwepyrroclastic, uye kanenge kamwe kakaitika gore rimwe gare gare, pana May 16, 1981.  Mubvunzo: Matombo akasiyiwa pakadonha ivhu akanga akaita sei?
chimiro chakafanana nemhepo yemashizha, marimi uye mapapu anowirirana