| SEISMOLOGY | Study of earthquakes |
| SEISM | ___ology, the study of earthquakes |
| EPICENTRES | Focal points of earthquakes |
| VIBRATIONS | Visit baron about the after-effects of earthquake (10) |
| GROUNDRENT | Payment to landowner -- result of earthquake? (6,4) |
| RINGOFFIRE | Long horseshoe-shaped seismically active belt of earthquake epicentres, volcanoes, and tectonic plate boundaries that fringes the Pacific basin. (4,2,4) |
| SWARMS | Dense bodies of flying bees, hence clouds of insects, crowds of people, showers of meteors, sequences of earthquakes or other myriads moving en masse (6) |
| SWARM | To climb by gripping with one's hands/feet; a throng of honey bees; a mass of bioluminescent krill, visible from space; a shower of meteors; or, a series of earthquakes (5) |
| RICHTERSCALE | Measure of the magnitude of earthquakes (7,5) |
| RICHTER | - scale; rating of the magnitude of earthquakes based on seismograph oscillations (7) |
| POSEIDON | God of the sea and of earthquakes in Greek mythology (8) |
| FOCI | Origins of earthquakes |
| SEISMIC | In the ice, miss cracking of earthquakes (7) |
| SEISMOMETER | Measurer of earthquakes (11) |
| RIFTS | Results of earthquakes |
| SEISMOGRAPH | What instrument measures the intensity of earthquakes? (11) |
| NOGREATSHAKES | Unmemorable absence of earthquakes (2,5,6) |
| TREMORS | Involuntary movements from effects of earthquakes (7) |
| THREATEN | Menace of earthquakes happening within decade (8) |
| THREATENS | Warns of earthquakes, giving the figures too |
