What is "ghostquake"

Ghostquake (also known as Haunted High) is a 2012 American made-for-television horror film produced by Syfy. The film was directed by Jeffrey Lando and written by Paul A. Birkett and Anthony C. Ferrante. The film stars Danny Trejo and MC Gainey. It follows a group of high school students trying to escape the wrath of a few ghastly spirits, following an earthquake at their school, Holloman High School. Mysterious school cleaner Ortiz, who has been protecting the academy in secret, steps forward to help the youths. Ghostquake first aired on Syfy on August 25, 2012.