THE EARTH moved for Anglesey and Gwynedd residents last week as an earthquake shook the region.
Dozens of people reported rattling windows and rumbling ground as the minor tremor, measuring at 2.4 on the richter scale, was located in Caernarfon Bay at 10.45pm on Thursday night.
Residents of Caernarfon, Bangor, Anglesey and even Porthmadog reported the quake, which was followed by aftershocks of 2.3 and 1.9 magnitude followed in three minute intervals.
Davie Galloway, of the British Geological Survey, said: ”We had a few people calling in from the Gwynedd region reporting rattling windows, rumbling ground beneath them and the feeling of lorries crashing into the house, which are the sort of things you’d expect of a tremor of this size.
“A few dozen people felt the first one, and we had ten to a dozen people reporting the smaller aftershocks.
“North-west Scotland, the Welsh borders and north-west Wales are probably the most active areas in the UK.”
Dr Graham Bird, Bangor University geography lecturer said: “They’re not unheard of as last night’s one shows, but they tend not to have any great magnitude.
“In terms of the UK, we get reasonably frequent but pretty small earthquakes. When people think earthquakes, they think huge massive destruction, but here it tends to be very minor really.
“From memory, I don’t think Wales has experienced an earthquake of any large magnitude recently.”
No damage to property was reported to the North Wales Fire and Rescue Service from the tremor.