11. A strong-motion seismometer measures acceleration. 12. The agency plans to add another seismometer and three more sensors to help monitor activity. 13. At the mine itself, a seismometer transmits measurements by radio to the British Geological Survey 14. After World War II, these were adapted into the widely used Press-Ewing seismometer . 15. Seismic wave fields are recorded by a seismometer , hydrophone ( in water ), or accelerometer. 16. One project was to install Devon Island s first seismometer , a Trillium Compact provided by Nanometrics. 17. The voltage needed to produce this force is the output of the seismometer , which is recorded digitally. 18. The broadband seismometer is connected to the internet, and real-time traces can be viewed online. 19. "This kind of thing won't ever show up on a seismometer , " he said. 20. Days earlier, the man had said he used the rattle of his beer signs as his own seismometer .
