"The Olympus Fault was a geological fault in the region of the Olympus Mountains on the planet Gryphon. A previously unknown branch of it, which was subsequently named the Athinai Switch, caused the Attica Avalanche in 1890 PD. (HHA2.4: THWH)"@en . "The Olympus Fault was a geological fault in the region of the Olympus Mountains on the planet Gryphon. A previously unknown branch of it, which was subsequently named the Athinai Switch, caused the Attica Avalanche in 1890 PD. (HHA2.4: THWH)"@en . "Olympus Fault"@en . . . .