Dr. Martin Heesemann is one of ONC’s Senior Staff Scientists, focused on tectonics and seismology. He is responsible for the scientific integrity of ONC’s subsea seismometers and bottom pressure recorders, the data from which are used to study earthquakes and tsunamis, as well as tectonic processes related to seafloor spreading and subduction. As a marine geophysicist, he is passionate about collaborating with scientists and engineers in academia and industry to develop new and improved geophysical instruments that push the limits of what can presently be measured in the deep ocean.  Martin is involved in the development and deployment of CORK borehole observatories that enable long-term monitoring of the IODP (Integrated Ocean Drilling Program / International Ocean Discovery Program) borehole. Martin coordinates research activity related to several of these borehole observatories that are connected to ONC’s NEPTUNE observatory. Martin is also the scientific lead of the Northern Cascadia Subduction Zone Observatory (NCSZO) project whose goal is to monitor interseismic seafloor deformation that measures the buildup of energy that will be released during the next big Cascadia megathrust earthquake. Martin holds a Ph.D. in marine geophysics from the University of Bremen.