At 9.45 am on 27 June 1906 , a powerful earth tremor was felt across much of South Wales , its epicentre being placed just offshore of Port Talbot . The quake , which struck just a few weeks after the devastating 1906 San Francisco earthquake , was felt as far afield as Ilfracombe , Birmingham and southwest Ireland
1906 San Francisco earthquake
1906 San Francisco earthquake
1906 Swansea earthquake