Powerful New England quake recorded in pond mud
The layers of a sediment core show a change around the time of the 1755 Cape Ann earthquake
![Sluice Pond sediment core](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/03/032718_cg_cape-ann_feat.jpg?fit=860%2C460&ssl=1)
MUDDY RECORD Researchers retrieve a sediment core from the bottom of Sluice Pond in eastern Massachusetts. The sediments contain evidence of an 18th century earthquake.
K. Monecke