Researchers (IMAGE) University of Texas at Austin Caption UTIG's Laura Wallace and Demian Saffer were co-chief scientists on the IODP Expedition that revealed how rocks influence earthquakes. The team also installed sensor-packed pieces of equipment called subseafloor observatories (pictured), which continue to monitor temperature, fluid pressure and tiny changes in the Earth's surface near the subduction zone. Credit Tim Fulton, IODP JRSO Usage Restrictions Please include photo credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.