Geology and Geophysics

http://www.pebblepup.com

Pebblepup is a site designed to share stories related to the hobby of rock hounding, provide information useful to rock hounds and to sell treasures and supplies....(Details)

http://earthquakedb.com

Largest known earthquake database with statistics and information about locations, magnitudes, with google earth support, search engine and RSS feeds...(Details)

http://tsunami.name

Largest known tsunami database with statistics and information about locations, magnitudes, with google earth support, search engine and RSS feeds...(Details)