Assertion: volcano's caldera | /r/MadeOf | tianchieruption of 946
Facets:
Source sentences:
text: The caldera was formed by the VEI 7 "Millennium" or "Tianchi" eruption of 946, which erupted about 100–120 km3 (24–29 cu mi) of tephra.
text: The caldera was formed by the VEI 7 "Millennium" or "Tianchi" eruption of 946, which erupted about 100–120 km3 (24–29 cu mi) of tephra.