Residents woken by earthquake tremors in North Wales An earthquake has been reported in the area around Dublin and around parts of west Wales. According to the British Geological survey, the tremor happened at 4.15am and measured 3.8 on the Richter scale. It's estimated that the epicentre was 55 miles south east of Dublin in the Irish Sea. BBC Breakfast's Bill Turnbill and Susanna Reid spoke with Kevin Clark, who lives in Anglesey and was woken up by the tremors. He said the earthquake caused the chandeliers in his daughters bedroom to rattle, but that there had been no damage caused.