seismometer seismometeran instrument that records ground movement; used to detect and measure earthquakes Related Articles: Glossary: seismic waveDecoding the hum of submarine volcanic eruptions – January 16, 2020Changes in Baleen Whale Vocalizations – April 3, 2020Underwater Acoustic Impacts of COVID-19 – June 3, 2020Sound waves from earthquakes can reveal changes in ocean temperature – February 5, 2021Seafloor exploration with fin whale calls – October 4, 2021Glacial Calving in the Arctic Produces Record Source Levels – March 15, 2022How is sound used to study the Earth’s history?EarthquakeCTBT Hydrophone Station Chris Knowlton2017-10-27T13:43:29-05:00