One 6.9 magnitude quake, south-east of the volcano, was the most powerful to hit the US state since 1975.
It briefly cut power and sent people fleeing from buildings but there was no tsunami warning.
Meanwhile, several fresh eruptions spewed fountains of lava 30m (100ft), destroying several homes and leaving fissures on three streets.
The Civil Defense Agency told any remaining residents to evacuate.
It said there were deadly levels of dangerous sulphur dioxide gas in the air and emergency crews would not be able to help anyone affected.
