I have most of the following in my library. Most are out of print but can be found in secondhand bookshops. The book by Eves was published by IOSH and is really good but I don't have it. I think Grayland may have written a second book on the same subject.
Cawthorne, N. (2004). 100 Disasters that Shook the World. Arcturus Publishing Ltd.
Eves, D. (2010). Disasters: Learning the lessons for a safer world. IOSH Services Ltd.
Grayland, E. (1957). New Zealand Disasters. A H & A W Reed.
Kennett, F. (1975). The greatest disasters of the 20th century (1st ed.). Marshall Cavendish Publications Ltd.