Earthquake is certainly one of the lesser of the disaster film of the 1970s and certainly the story and characters, despite a respectable cast, was the weaker point but I was at least impressed with some of the miniature and special effects work.
Sentinel is an uneven yet still creepy supernatural-horror flick with some good performances from a respectable ensemble cast that includes Ava Gardner, Burgess Meredith, Eli Wallach and Christopher Walken. The Blu-ray released by Shout Factory has above average video and audio transfers and a fine selection of bonus material.