1811-1812 New Madrid Earthquakes (Wikipedia)

This source backs 12 claims across the atlas. As facts: 6 well-attested, 2 scholarly debate. As cited relationships: 2 holds, 1 connected. Plus 1 entities citing it as a general reference with no single fact or relationship attached.

Disposition By Topic

• Phenomena, 9 claims: 3 well-attested, 2 scholarly debate, 2 holds, 1 connected, 1 general references.
• Sources, 3 claims: 3 well-attested.