Editing Scunthorpe (section)

==Geology==
{{see also|Scunthorpe Steelworks#Background and Geology}}
[[File:ScunthorpeSkyline.jpg|thumb|upright=1.25|The skyline of Scunthorpe, August 2016]]
Scunthorpe is located close to an outcrop of high-lime-content ironstone (~25% iron average) from a seam of the [[Lias Group]] strata which dates from the [[Early Jurassic]] period and runs north–south through Lincolnshire. Ironstone was mined by [[Open cast mining|open cast methods]] from the 1850s onwards, and by underground mining from the late 1930s. In the 1970s the steel industry in Scunthorpe began to use of ores imported from outside the UK with higher iron content. Underground mining in the area ceased in 1981.

Scunthorpe was close to the epicentre (at [[Middle Rasen]]) of the [[2008 Market Rasen earthquake]], the second largest earthquake experienced in the British Isles, which had a magnitude of 5.2. Significant shocks were felt in Scunthorpe and the North Lincolnshire vicinity. The main 10-second quake, which struck at 00:56 GMT on 27 February 2008, at a depth of {{cvt|15.4|km|abbr=on|order=flip}}, was second only to a 1984 quake, with a magnitude of 5.4, in [[North Wales]].