Solution:The most active volcano in the world is Kilauea on Hawaii Island United States of America. Kilauea is followed by Etna in Italy and Piton de la fournaise and Nyamuragira volcanos on the basis of eruptions.Kilauea, also called Mount Kilauea ("Much Spreading" in Hawaiian), is located in Hawaii Volcanoes National Park on the southeastern part of the island of Hawaii, US. Kilauea's slopes merge with those of the nearby volcano Mauna Loa on the west and north.
It is an elongated dome built of lava eruptions from a central crater and from lines of craters extending along east and southwest rifts, or fissures. The volcano's 4,090-foot summit has collapsed to form a caldera.
A caldera is a depression created after a volcano partially collapses after releasing the majority of its magma chamber in an explosive eruption. The caldera was the site of nearly continuous activity during the 19th century and the early part of the 20th century.
It is one of the world's most active volcanoes, having erupted 34 times since 1952. From 1983 to 2018, it erupted almost continuously. In December 2020, It erupted at the crater, creating a lake with enough lava to fill 10 Hoover dams. That eruption ended in May 2021