Assertion: hawaiian hot spot | /r/HasProperty | active
Facets:
value: for at least 70 million years
type: TEMPORAL
Source sentences:
text: The Hawaiian hot spot has been active at least 70 million years, producing a volcanic chain that extends 3,750 miles (6,000 km) across the northwest Pacific Ocean.
text: The Hawaii hot spot has been active for at least 70 million years.