The Earth and Environmental Science Department will host Dr. Bill Barnhart of the United States Geological Survey for the weekly seminar. Barnhart will present, "Phantom Earthquakes: Vertical Strain Partitioning and the Punctuated Growth of Mountain Belts." Sponsored by the Department of Earth & Environmental Science and New Mexico Bureau of Geology & Mineral Resources. Hosted by Dr. Glenn Spinelli. 4 p.m. in MSEC 101.