Often used in geography to describe the furthest east location in a particular area or map.

Geographical Use

Useful for comparing locations to find which is more to the east than others.

Comparative Analysis

Highlights the specific cardinal direction when discussing locations or directions.

Directional Emphasis

 Everywhere, there's just evidence of panic to get out of here as fast as possible. It's really a time capsule of a really bad disaster that happened here. The Daiichi nuclear power plant sits on the easternmost edge

Returning to Fukushima PIPE...

 of their vessel. The palu also had an uncanny ability to forecast weather conditions days in advance. Sometimes I'd be with Mau on a cloud-covered night and we'd sit at the easternmost coast of the island,

Easternmost