What does the "Ring of Fire" refer to and how is this related to tsunamis?

"Ring of Fire" is this related to tsunamis as -

Explanation:

The Ring of fire is basically a large area in the pacific ocean, where many Volcanic eruptions and earthquakes occurs.

The area is 40,000 Km and is in the shape of a horseshoe shape, with 452 Volcanoes, from which 75 percent are the world's active volcanoes.

It is also referred to as the Circum - pacific belt.

The Ring of Fire is related to tsunamis as -

Most of the Tsunamis (approximately 80%), occurs in the pacific Ocean,

In the Ring of Fire, a geographically active area where tectonic shifts make volcanoes and the earthquakes.