But they could happen. https://en.wikipedia.org/wiki/Storegga_Slide https://en.wikipedia.org/wiki/Storegga_Slide Besides that something like this https://de.wi

But they could happen. https://en.wikipedia.org/wiki/Storegga_Slide https://en.wikipedia.org/wiki/Storegga_Slide Besides that something like this https://de.wikipedia.org/wiki/Erdgasleck_in_der_Nordsee https://de.wikipedia.org/wiki/Erdgasleck_in_der_Nordsee could also lead to a tsunami if it caves in. Considering how many we have there it's not that unlikely: https://en.wikipedia.org/wiki/List_of_oil_and_gas_fields_of_the_North_Sea https://en.wikipedia.org/wiki/List_of_oil_and_gas_fields_of_...