It was a huge Phreatic eruption-explains the sudden BLAST. It was explained to me that one can see it in the blast cloud after it let go. Lots of steam.
Since it was far down in the southern hemisphere, we shouldnt see to much in the air in the N hemisphere. But, look to see if the sky is a tiny deeper blue and the sunsets are a tiny more pink color.
They are trying to determine how much has been put into the upper atmosphere. South of the Equator will see the most effects if any.
I’ve seen some preliminary reports on the eruption. Guesses are in the range of VEI upper 5 to lower 6 on the Saturday blast. There was a smaller eruption on Friday. Vesuvius(79 AD) and Mt. Halens eruptions are estimated to be in the 4-5 VEI.
Krakatoa was NOT in 1983.
Your credibility is now below sea-level.