Cataclysm is derived from the Greek katá (κατά), 'down, against', and klyzō (κλύζω), 'wash over, surge'. It may refer to:
Common meanings
- Generally, any large-scale disaster
- Deluge (mythology)
- Doomsday event, see hypothetical risks to civilization, humans, and planet Earth
- A catastrophic natural event:
- List of geological phenomena
- earthquake, the result of a sudden release of energy in the Earth's crust that creates seismic waves
- volcanic eruption
Video games
- World of Warcraft: Cataclysm, an expansion pack of Blizzard Entertainment's World of Warcraft
- Cataclysm: Dark Days Ahead, an open-source cross-platform roguelike video game
- Homeworld: Cataclysm, a stand-alone expansion, of the Homeworld space-based RTS franchise
Books and comics
- Cataclysm (Dragonlance), a fictional event in the Dragonlance novels
- Batman: Cataclysm, a DC Comics crossover story arc featuring Batman
- Cataclysm: The Ultimates' Last Stand, a 2013–2014 crossover storyline appearing in the Ultimate Marvel line of books
- Godzilla: Cataclysm, a miniseries from the Godzilla comics by IDW Publishing, see Godzilla (comics)#Miniseries
Other uses
- A special ability used by Cat Noir, a character in Miraculous: Tales of Ladybug & Cat Noir
- "Cataclysmic", a song by Joe Satriani from the 2015 album Shockwave Supernova
See also
- Cataclysmic variable star, which irregularly increases in brightness by a large factor, then drops back down to a quiescent state (initially called nova)
- Cataclysmic pole shift hypothesis, pseudo-scientific claim of past rapid changes of Earth's axis
- Ekpyrosis, a conflagration
- Pyroclastic flow, fast-moving current of hot gas and volcanic matter
- Lahar, violent volcanic mudflow or debris flow
- Eschatology, part of theology concerned with the final events of history
- Kataklysm, Canadian death metal band
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