Fracking could shake the Conservative vote | Letter

Having been taught seismology by Prof Peter Styles, who developed a traffic-light monitoring system in the 1980s that dramatically reduced the impact of coal mining under Swansea for local residents, I believe Jacob Rees-Mogg has a risible scientific understanding about shale gas extraction (Tory MPs angrily challenge Rees-Mogg’s fracking revival plan, 22 September). Vibrations from quarries and building sites tend not to be widespread, compared to shaking generated a few kilometres beneath an area.

The current 0·5 magnitude limit was set so tremors should not rise above 2·5, “because of the increased risk of larger magnitude events”, according to a recent British Geological Survey report. Proposing a higher limit would be reckless, as any anthropogenic tremors above 3 could prove to be destructive – not least to the Tory vote, if people’s houses start crumbling.

Above the Groningen gas field in the Netherlands, many houses were destroyed by frequent shaking triggered by over-hasty extraction rates.
David Nowell
Fellow of the Geological Society

Have an opinion on anything you’ve read in the Guardian today? Please email us your letter and it will be considered for publication.

The Guardian

Leave a Reply