From the Foresight Institute (which specialises in nanotechnology).
A variety of apocalypses: meteors, black holes, technological disasters, weird physical phenomena, ...
This survey considers earthquake, pandemic, alien aggression, interplanetary impact, supernova, ice...
Virtual "bomb shelter," based on instructions from Soviet Union Cold-War-era pamphlets, offers info...
The powerful earthquake and tsunami that hit Asia on December 26, 2004 was not the last in the mast...