| SEISMOLOGY | Scientific study of earthquakes and tectonic movement (10) |
| CONTINENTAL | Tectonic movement, ... drift |
| RINGOFFIRE | Long horseshoe-shaped seismically active belt of earthquake epicentres, volcanoes, and tectonic plate boundaries that fringes the Pacific basin. (4,2,4) |
| ESTUARIES | Geographical features whose types include bar-built and tectonic (9) |
| EARTHQUAKE | Upheaval caused by the collision of tectonic plates |
| CONTINENTS | Operation needing consent for tin tectonic plates (10) |
| REDSEARIFT | The ____ is between the gradually separating African and Arabian tectonic plates |
| EPICENTRES | Focal points of earthquakes |
| VIBRATIONS | Visit baron about the after-effects of earthquake (10) |
| GROUNDRENT | Payment to landowner -- result of earthquake? (6,4) |
| SEISM | ___ology, the study of earthquakes |
| TALCA | In part destroyed by earthquakes and rebuilt in 1742 and 1928, what is the capital of Chile's Maule |
| SEISMOLOGISTS | Geophysicists who study earthquakes and their phenomena (13) |
| HEATRASH | Eruption, earthquakes and shower of lava (4,4) |
| 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) |
| MLS | Org. with Earthquakes and Fire |
| BREATHE | Exist without earthquakes and stay alive (7) |
| ARENAS | Places to watch Earthquakes and Hurricanes |
| 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) |
| POSEIDON | God of the sea and of earthquakes in Greek mythology (8) |
