In essence it is. It’s massive. This, from Wikipedia:
It is about 40,000 km (25,000 mi) long[1] and up to about 500 km (310 mi) wide,[2] and surrounds most of the Pacific Ocean.
The Ring of Fire contains between 750 and 915 active or dormant volcanoes, around two-thirds of the world total.[3][4] The exact number of volcanoes within the Ring of Fire depends on which regions are included.
About 90% of the world’s earthquakes,[5] including most of its largest,[6][7] occur within the belt.