Assertion: volcano's vent | /r/MadeOf | liquid lava splashing
Facets:
value: occasionally
type: DEGREE
Source sentences:
text: When observed on 20 June, the new vent with the lava lake was 7-8 m diameter and contained liquid lava splashing at a depth of about 30-40 m. Occasionally, lava fragments were ejected outside the vent.