Assertion: volcano's summit | /r/CreatedBy | interaction of magma
Facets:
value: with the underground water table
type: OTHER
Source sentences:
text: The Hawaiian Volcano Observatory warned that the lowering of the lava lake increased the potential for phreatic (steam) explosions at the summit caused by interaction of magma with the underground water table, similar to the explosions that occurred at Halemaʻumaʻu in 1924.