Research helps paint finer picture of massive 1700 earthquake

In 1700, a massive earthquake struck the west coast of North America, but a lack of local documentation has made studying this historic event challenging. Now, researchers have helped unlock this geological mystery using a fossil-based technique. Their work provides a finer-grained portrait of this earthquake and the changes in coastal land level it produced, enabling modelers to better prepare for future events.
Source: http://www.sciencedaily.com/releases/2013/05/130514190635.htm