Not sure about ten but number one would definitely be Krakatoa, which caused an explosion so great that the island it consisted was blown completely off the globe and could be heard 1/13th around the world. I'm pretty sure the eruption of St Helens and Pompeii would also be in the top ten, but it depends on what you define as "worst", and whether you mean human or earth's history.
My great-grandmother.
J Jayalalitha is worst chief minister in tamilnadu
Matt Millen.
The worst record in MLS history came in 2001 with the Tampa Bay Mutiny achieving a record of 4-21-2 (14 points).
The Vietnam war, for sure
nero
The Olympus mons On the planet mars
the worst earthquake in history is the hediezz earthquake
No body no's
The Worst Jobs in History was created in 2006.
dormant volcanoes
dormant volcanoes
The volcanoes were created by the Polynesions
Not the worst, but one of the worst.
Extinct
The Worst Jobs in History - 2004 is rated/received certificates of: Australia:PG
The worst drought in Southern Nevada history occurred in 2003.