I wonder, if this is an accurate assessment, could it also have a potential impact to increase seismic activity as well?
NASA Details Earthquake Effects on the Earth
January 10, 2005
NASA scientists using data from the Indonesian earthquake calculated it affected Earth’s rotation, decreased the length of day, slightly changed the planet’s shape, and shifted the North Pole by centimeters. The earthquake that created the huge tsunami also changed the Earth’s rotation.
http://www.jpl.nasa.gov/news/news.cfm?release=2005-009