Earthquake,.. on the East Coast?!

Yes, it's true. We Californians like to share, I guess. Did you know that one of North America's biggest earthquakes actually occurred on the Mississippi River in the early 1800's? So this is not unprecedented, although unexpected.

I love this map, which includes what we call 'authoritative' data sources (from USGS data feeds and others - agencies that are responsible for tracking this type of information and we know we can rely on) and then data from the general public - you really get a sense of how strong the liquifaction of this quake was (so much soil on the East coast! Not as much rock as we Californians have) and how far away it was felt. Seeing information in geographic space can give you a better sense of an event, a deeper understanding of what happened.