Drill-ship back from fiery hell . Ancient underground fracture may threaten ground water supplies . Washington university seismologist makes 'movie' of seismic waves during an earthquake . First national earthquake engineering computer network takes shape . LSU scientists take geology to great depths .
Scientists say volcanoes bigger threat than asteroids .
Naturally Occurring Radiogenic Elements Make Effective Groundwater Flow Tracers . Getting the lead out . On Freeze, Thaw Cycles of Hundreds of U.S. Lakes . Chemical may deter starfish from devouring endangered coral reefs . Do not hide from rain under a firetree .