Doesn't fit the profile. From Pellegrino's Unearthing Atlantis, it had a long history as a volcanic hotspot before and since the Iron Age biggie that devastated Minoan Crete 70 miles over the water. The Thera (where did you get Exodus?) excavations seem to show pipes for geothermal hot and cold running water.
Yup, that's my argument against an impact also. It's in an already previously active area.
Santorini could have provided all the fireworks, famines and etc. for the Exodus.
The Santinori plume would need to be 30 miles high to be visible in the Nile Valley. The recent Pinatubo volcano was 26 miles high.
The destroyed walls of Jerico are just above the Santorini ash layer and dated appropriately by charred wheat. (The Egyptian Kings List would have to be wrong)
It's just a idea, I absolutely do not want to get into another Lost Tribes discussion!!