_arp.jpg) Glastonbury Tor (pictured in 2010) showing the tower of the rebuilt St Michael's Church (C14) | |
| Local date | 11 September 1275 |
|---|---|
| Local time | Morning |
| Magnitude | 6 Mw (hypothesised) |
| Areas affected | London, Canterbury, Winchester, Glamorgan |
| Max. intensity | MSK-64 VII (Very strong) EMS-98 VIII (Heavily damaging) |
| Foreshocks | None reported |
| Aftershocks | None reported |
| Casualties | Multiple fatalities |
On 11 September 1275, an earthquake struck the south of Great Britain. The epicentre is unknown, although it may have been in the Portsmouth/Chichester area on the south coast of England[1] or in Glamorgan, Wales.[2] The earthquake is known for causing the destruction of St Michael's Church on Glastonbury Tor in Somerset.
- ^ "Notes on Individual Earthquakes". British Geological Survey. Archived from the original on 19 November 2007. Retrieved 5 August 2019.
- ^ Musson, Roger (9 July 2015). "What Was the Largest British Earthquake?" (PDF). SECED Conference 2015: 3. Retrieved 5 August 2019.