hypocentre (of an earthquake); hypocenter; focus
shock; tremor; impact; vibration
severe earthquake; violent tremor
stamp (in Chinese martial arts); stomp
shock; shaking; concussion
violent earthquake; severe earthquake
main shock (of an earthquake)
epicentre (of an earthquake); epicenter
atmospheric vibration; infrasound (as produced by volcanic activity)
base isolation; seismic base isolation; base isolating; vibration damping at the base of a building
vibration control (in earthquake-resistant construction)
tremolo; trill; vibratory sound; warble tone
stellar oscillation; starquake
region of anomalous seismic intensity
zhen (hexagram 51 of the I Ching: thunder, the arousing)