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Iceland has about 130 volcanic mountains.
About 18 have been active since human settlement.
The related link below shows you where these active volcanoes are.
Into Google Search type "List of volcanoes in Iceland"
Yes, there are 30 active volcanoes in Iceland.
grimsvótn
hekla
katla
laki
surtsey
these are some names of volcanoes in Iceland.
Iceland has about 900 volcanoes and 55 are active!
iceland is a belt of volcanoes/hotspots along the mid ocean ridge, it isn't just mostly volcanoes, it is a volcano itself