Ua hopu ʻia kahi pahū ʻoi aku ka ikaika ma mua o ka mau ma nā kāmela i hoʻohana ʻia e ka Istituto Nazionale Geofisica e Vulcanologia (INGV). Nā kiʻi i hāʻawi ʻia e Il Mondo dei Terremoti ma Twitter e hōʻike ana i ka pele i ka manawa maoli; wikiō i kiʻi ʻia e nā kāmela infrared e hōʻike ana i ka pele mua i wela a me ke ao anuanu o ka lehu a me nā kinoea e mālama ana i lalo. ʻIke ʻia kēia avalanche o ka lehu wela a me nā kinoea ʻo ke kahe o pyroclastic.
Mai ke kauhale, ʻike ʻia kahi plume lehu kupaianaha e piʻi ana ma kahi o 100 m ma luna o ka piko. Ma hope koke iho o ka pele, ua kau ka ua lehu ikaika o ka lapilli liʻiliʻi, e uhi ana i nā ʻāpana āpau.
ʻO ke kala o ka hapanui o nā mea, a hiki i kahi mm o ka nui, ʻeleʻele i ka ʻulaʻula, i wehewehe ʻia e like me ka "lepo". ʻO kēia paha ka manaʻo o ka hapa nui o nā mea i kipaku ʻia mai nā pōhaku pele kahiko i nā lua pele ma loko o nā lua pele, mai nā ʻāpana o nā lua pele a i ʻole nā ʻauwai i wāwahi ʻia. Eia nō naʻe, aia kekahi liʻiliʻi o ka pumice māmā i ka lehu, e hōʻike ana paha i kahi pūʻulu magma hou i hoʻokau i ka pahū.
He aha e lawe ʻia mai kēia ʻatikala:
- However, a small amount of lighter pumice was also present in the ash, probably representing a batch of fresh magma that had driven the explosion.
- This could mean that most of the ejected material might be from older lava rocks in the summit craters or inside the vent, from collapsed parts of the craters or conduits.
- The color of most particles, up to a few mm in size, was mostly brown to reddish brown, described as “earthy”.
