Are earthquakes environmental issues or not?

No, because it is considered to be a natural calamity, which is an act of God.Therefore, no humans can control this issue

Environmental issues are caused due to inconsiderate acts of humans that causes damage and danger, which are preventable, if they are careful and considerate to other living beings.. For eg: dumping non-degradable plastic bags inappropriately, smoking, disposing bottles and cans anywhere, etc.....