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- "Groundquakes and meteor storms! Sounds cataclysmic."
- ―Captain Rae Sloane of the Ultimatum comments on the effects that destroying Cynda will have on Gorse
A groundquake,[2] also called a seismic quake,[3] was a geological event in which parts of a planet's surface violently shook, often damaging buildings and causing damage. They could occur seasonally, as was the case on the planet Dalna.[2]
During the Clone Wars, the Kindalo species caused a series of groundquakes on their homeworld Aleen in order to try to close a breach which had opened up between their subterranean world and the surface, allowing in air that was toxic to them. The quakes devastated the surface, and greatly affected the Aleena species that lived there, causing the Galactic Republic to send aid to the world. Among the aid workers were the droids R2-D2 and C-3PO, who, after learning about the cause of the quakes, managed to reseal the breach and so end the quakes.[4]
Groundquakes occurred regularly on the planet Gorse when its moon Cynda approached during its elliptical orbit. During a quake, parts of the planet's surface violently shook and rocked, often causing damage to buildings. The quakes occurred to release the energy that built up through the gravitational pull of Cynda and the Gorse system's star on Gorse. Droid workers would occasionally fall into the acid baths used by Moonglow Polychemical on Gorse during groundquakes. When Lal Grallik—the manager of Moonglow—was murdered in one of the baths by Count Denetrius Vidian, it was claimed she had accidentally fallen in during a quake. When Vidian later planned to destroy Cynda, the science officers on board the Imperial-class Star Destroyer Ultimatum predicted that the loss of the moon would increase groundquakes on Gorse.[1]
During a vision on Coruscant, Palpatine thought he felt the ground shake but remembered that it was not real, as it was physically impossible for a quake of that magnitude to occur as Coruscant was an artificially regulated planet.[5]
Behind the scenes
Groundquakes first appeared in the Star Wars Legends novel Lando Calrissian and the Mindharp of Sharu, which was written by L. Neil Smith and released in 1983. They were confirmed to be canon by their appearance in Mercy Mission, an episode of the Star Wars: The Clone Wars television series, which aired in 2011 as part of the show's fourth season.
Appearances
- The High Republic: Convergence (and audiobook) (Mentioned only)
- The High Republic: Path of Deceit (and audiobook) (Mentioned only)
- The High Republic: Path of Vengeance (and audiobook) (Mentioned only)
- The High Republic: Cataclysm (and audiobook) (Mentioned only)
-
Star Wars: Young Jedi Adventures — "Aftershock" - The High Republic: Mission to Disaster (and audiobook)
- The High Republic: Midnight Horizon (and audiobook) (Mentioned only)
- The High Republic: The Battle for Starlight (and audiobook) (Mentioned only)
- The High Republic: The Fallen Star (and audiobook) (Mentioned only)
- The High Republic (2021) 12 (Indirect mention only)
- The High Republic: Defy the Storm (and audiobook) (Mentioned only)
- The High Republic: Trials of the Jedi (and audiobook)
- The Acolyte: Wayseeker (and audiobook) (Mentioned only)
- Master & Apprentice (and audiobook) (Mentioned only)
- The Living Force (and audiobook) (Mentioned only)
- Mace Windu: The Glass Abyss (and audiobook) (Mentioned only)
- Queen's Shadow (and audiobook) (Mentioned only)
- Dooku: Jedi Lost (In flashback(s))
-
Star Wars: The Clone Wars — "Mercy Mission" (First appearance) - "Almost a Jedi" — The Clone Wars: Stories of Light and Dark (and audiobook) (Mentioned only)
- Master of Evil (Mentioned only)
- Sanctuary: A Bad Batch Novel (Mentioned only) (In flashback(s))
- Adventures in Wild Space: The Rescue (and audiobook)
- Tarkin (and audiobook) (Mentioned only) (First identified as seismic quake)
- A New Dawn (and audiobook)
- Choose Your Destiny: A Podracer Mission
- Thrawn: Alliances (and audiobook) (Mentioned only)
- Battlefront II: Inferno Squad (and audiobook) (Mentioned only)
- Star Wars (2015) 29
- Star Wars (2015) 41 (Mentioned only)
-
"Tales of Villainy: A Last Chapter" — Star Wars Adventures (2020) 13 (Mentioned only) - "Disturbance" — From a Certain Point of View: The Empire Strikes Back (and audiobook) (Mentioned only)
- Shadow Fall: An Alphabet Squadron Novel (and audiobook)
- Victory's Price: An Alphabet Squadron Novel (and audiobook) (Mentioned only)
-
"Scorched" — Star Wars Insider 165 (reprinted in Star Wars Insider: The Fiction Collection Volume 2) (Mentioned only) - The Legends of Luke Skywalker (and audiobook) (Mentioned only)
- Force Collector (and audiobook) (Mentioned only)
- Star Wars: The Rise of Skywalker: A Junior Novel (and audiobook) (Mentioned only)
Sources
- Star Wars Helmet Collection: Imperial Gunner Databank A-Z: Cosians–Dagobah
- Nexus of Power
- Star Wars Helmet Collection: Commander Bly Databank A-Z: Admiral Wiskovis–The Works
- Star Wars Helmet Collection: Silvanie Phest Weapons & Uniforms: The Ashes of Jedha
- "R2-D2" — Star Wars Encyclopedia
- "C-3PO" — Star Wars Encyclopedia
- Star Wars: The Clone Wars: Character Encyclopedia - Join the Battle!
- Star Wars: The High Republic: Chronicles of the Jedi
- Star Wars: Complete Locations, New Edition
-
Aleen in the Databank (backup link)