1. a scientist who studies earthquakes and the movement of waves through the Earth

Examples

• The seismologist predicted that aftershocks would continue for several weeks.
• Dr. Martinez is a seismologist who specializes in volcanic earthquakes.
• The university hired a new seismologist to lead their earthquake research program.
• Seismologists use sensitive instruments to detect ground movement.
• The seismologist explained how tectonic plates cause earthquakes.
• Local seismologists are monitoring the fault line for unusual activity.