If Krakatau was not amongst the top three greatest volcanic explosions, I do not know what is. On a pure loss of life comparison basis, Krakatau only resulted in 36,000 deaths versus 230,000 for the Indian Ocean tsunami on 26th December 2004. Certainly, the effect of Krakatau was felt was as far afield as Port Elizabeth and South America.
Even though its effect on Port Elizabeth was not very significant, in one person’s life it was important.
Main picture: Contemporary map of Krakatoa