List of volcanoes in the Republic of Ireland

Ireland has no active volcanoes. Volcanic activity in the country occurred primarily between 480–430 mya (million years ago), during the Ordovician geological age.

List Name Elevation Location Last eruption metresfeetCoordinatesCounty Bennaunmore 454 1490 Kerry +358 mya Bohaun - - Mayo - Cnoc An Duin 67 220 Galway +58 mya Croghan Hill 234 768 Offaly ±350 mya Horses Glen - - Kerry +358 mya Killeen - - Kerry +358 mya Lambay Island - - Dublin - Limerick volcanic basin 220 782 Limerick - Loch Na Fooey 25 82 Galway ±490 mya Vinegar Hill 122 400 Wexford - Westmeath-Offaly volcano - - Offaly and Westmeath ±330 mya

References