Since seismic waves generated by earthquakes offer the most direct means for sampling the Earth’s deep interior, seismologists exploit the energy produced by large magnitude, deep earthquakes to the greatest extent possible. Unfortunately for imaging purposes, earthquakes tend to happen repeatedly in the same few locations, and most seismographic stations are located on continents. Although a few stations are scattered through the ocean basins on isolated islands, the current collection of stations does not provide the experimental geometry required, or the flexibility to create the required geometry, to image the deep Earth fully, given the distribution pattern of earthquakes. To achieve the needed flexibility, UTIG scientists Jay Pulliam and Yosio Nakamura and engineer Ben Yates are developing a broadband seismograph that can be temporarily deployed on the ocean bottom to record earthquakes for up to a year at a time.