Yup..big ones in 536-37. The Tambora and the..i forget the dam name now..1883.
They figure ones in 536 37 came from Central America. Big discussions about that yet.
Krakatau (Indonesia) in 1883. I found a big coffee table book about it years ago. More of a science book I guess but with lots of water colors, hand sketches, technical information and historical accounts. Some from ships that were nearby, accounts from locals, etc. Several photographs.
One photo was of a train that had been washed inland a huge distance (a mile?) due to the huge tsunami. I think the run-up from the wave was over 100 meters in some locations.
There was an entire section of the book detailing the tidal gauge measurements around the world, with tides in England being impacted by the eruption! And of course all the ash causing “the year without summer” throughout the world.
The Tambora eruption threw so much ash into the atmosphere that 1816 was “the year without summer” and crops did not ripen, leading to widespread starvation. It’s estimated that 300,000 people died of starvation in Ireland alone. Three of my ancestors died of starvation in 1817 (not in Ireland).
Tambora was in 1815
Krakatoa was in 1883
So on average we have some time before the smaller ones go off.
Judging by the averages—we may be due for one of the bigger ones. Not sure. How do you figure?