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1884 Colchester earthquake

Earthquake in Essex, England

Field	Value
title	1884 Colchester earthquake
pre-1900	yes
local-date
local-time	09:18
map2	{{Location map	United Kingdom Essex
lat	51.82
long	0.90
mark	Bullseye1.png
marksize	40
position	top
width	250
float	right
caption	}}
magnitude	4.6 ML
depth	3 km
intensity
location
countries affected	England, Essex
casualties	2 (indirect)
engvar	en-UK

|pre-1900 = yes |local-date= |local-time = 09:18

The Colchester earthquake, also known as the Great English earthquake, occurred on the morning of 22 April 1884 at 09:18. It caused considerable damage in Colchester and the surrounding villages in Essex. In terms of overall destruction caused it is certainly the most destructive earthquake to have hit the United Kingdom in at least the last 400 years, since the Dover Straits earthquake of 1580.

Earthquake

At 9:18 am the earthquake struck, centred mainly in the villages of Wivenhoe, Abberton, Langenhoe, and Peldon causing the surrounding area to rise and fall violently as the waves spread, lasting for around 20 seconds. Measuring 4.6 on the Richter scale, the effects were felt across England, as well as in northern France and Belgium.

It is believed that the earthquake resulted from movement along a fault in the ancient Palaeozoic rocks that underpin most of Essex, causing waves to propagate through the overlying Cretaceous and Tertiary layers.

The British Geological Survey estimates that the 1884 earthquake's magnitude was only around 4.6 on the Richter scale, compared with 6.1 for the 1931 Dogger Bank earthquake.

Damage

The earthquake damaged about 1,250 buildings, including almost every building in Wivenhoe and Abberton, and in settlements all the way to Ipswich. The medieval church in Langenhoe was significantly damaged, as were those in the villages of Layer-de-la-Haye, Layer Marney, Layer Breton, and Peldon. In Peldon, the local newspapers claimed that every building had been damaged in some way. The Guardian reported that the earthquake was greeted with terror by the people near Colchester.

There are some reports that between three and five people were killed by the earthquake, but this has been disputed by other contemporary accounts and later analysis, which suggest that there were no fatalities directly caused by this event. Mary Saunders, of Manningtree, drowned herself in the River Stour some days later. The large waves caused by the earthquake destroyed many small craft.

Langenhoe Church was badly damaged. Masonry tumbled off the tower, crashing into the roof of the nave and chancel. The nearby rectory was also damaged.

References

Notes

Bibliography

References

GeoForschungsZentrum. "An earthquake catalogue for central, northern and northwestern Europe based on Mw magnitudes / Annex. STR 03/02".
(August 2018)
[http://www.earthquakes.bgs.ac.uk/education/faqs/faq10.html What is the most damaging British earthquake?]
{{Harvnb. Haining. 1976
{{Harvnb. Haining. 1976
{{Harvnb. Haining. 1976
(23 April 1884). "Earthquake in England". [[The Times]].
"Fatalities in British earthquakes".

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