Assertion: volcano's eruption | /r/CapableOf | cover much of east-central california
Facets:
value: in glowing hot ash
type: LOCATION
Source sentences:
text: About 760,000 years ago, a super eruption occurred at what is now known as the Long Valley Caldera, erupting an astonishing 140 cubic miles of magma, covering much of east-central California in glowing hot ash and blowing ash as far away as present-day Nebraska.