Exploring the Earth’s Crust

Seismology uncovers hidden secrets beneath our feet

-- Free public lecture by U.S. Geological Survey geophysicist Walter Mooney 

During the past century, scientists have dissected the outer layer of our planet with bold scientific investigations revealing the deep properties of Earth’s crust. 

Scientific creativity has fostered innovation in field measurements from the Tibetan Plateau to the deep Pacific Ocean and beyond.

New insights are providing clues to processes that have been shaping Earth during the past 4.5 billion years.

Can’t make it to Menlo Park? Lecture will be livestreamed and archived on the Web at

http://online.wr.usgs.gov/calendar/live.html