Seismologist

A seismologist was an individual who was versed in the scientific study of seismology, the study of earthquakes.

A seismologist worked at the Federation mining colony on Angrena in 2268. This person informed Chief Engineer Ripley that the massive explosion that had occurred inside the facility meant that total collapse would occur within 24 hours. 

The Atrean scientist, Pran Tainer worked as a seismologist in the late 24th century.