Apparently the last one was about 14 million years ago. https://en.m.wikipedia.org/wiki/Middle_Miocene_disruption https://en.m.wikipedia.org/wiki/Middle_Miocen

Apparently the last one was about 14 million years ago. https://en.m.wikipedia.org/wiki/Middle_Miocene_disruption https://en.m.wikipedia.org/wiki/Middle_Miocene_disruption