Question: what are the early signs of volcanic eruption?
Answer: Before an Eruption. Before a volcano erupts, there is normally an increase in earthquakes and tremors near and under the volcano. ...  Volcanic Gas. During an eruption of a volcano, gases dissolved in the magma are released into the air. ...  Lava. ...  Volcanic Landslide. ...  Pyroclastic Flows. ...  Volcanic Ash.