Earthquakes

Cuadrilla Caused Earthquakes in the Only UK Fracking

Preese Hall well schematic casing deformedThe only High Volume Hydraulic Fracturing (fracking) to have occurred in the UK was by Cuadrilla at Preese Hall well near Blackpool in 2011.

It caused earthquakes up to 2.3 in magnitude that damaged the well casing, which was deformed for 160 feet.1

 

Sharp Surge in Oklahoma Earthquakes Linked to Fracking

However, many more and much bigger earthquakes have been connected with fracking in the US, where tens of thousands of wells have been drilled and fracked in the last few years.

earthquake Oklahoma_

Sparks, Oklahoma, 2011. The state has seen a boom in two things in recent years: oil and gas production and earthquakes. (LA Times)

Fracking produces huge quantities of toxic waste fluid to be disposed of.  One disposal method is to inject it into old wells.

A recent study in the highly respected journal Science suggests massive wastewater injection into disposal wells induced a sharp increase in earthquakes in central Oklahoma.

Still, they’d never be allowed to do that near East Yorkshire… would they?

Read on for more on Waste Fluid disposal…

 

 



1.  Scientific report for the government into the Preese Hall fracking earthqukes.

preese-hall-shale-gas-fracturing-review-and-recomm

 

PREESE HALL SHALE GAS FRACTURING – REVIEW & RECOMMENDATIONS FOR INDUCED SEISMIC MITIGATION – Report for DECC by British Geological Survey et al.


2.

science earthquakes

Sharp increase in central Oklahoma seismicity since 2008 induced by massive wastewater injection – Science, 25 July 2014