Assertion: new madrid seismic zone | /r/HasProperty | the most active seismic area
Facets:
value: in the united states
type: LOCATION
value: east of the rocky mountains
type: LOCATION
Source sentences:
text: While not as well known for earthquakes as California or Alaska, the New Madrid Seismic Zone (NMSZ), located in southeastern Missouri, northeastern Arkansas, western Tennessee, western Kentucky and southern Illinois, is the most active seismic area in the United States, east of the Rocky Mountains.