发生地震，用英语写出该采取怎样的措施？

when earthquake happened, firstly, don't be panic and calm down. Secondly, one should hide himself/herself under something hard, such as desk, talbe or even bed! Thirdly, when one make sure it is safe enough, try to escape from the house and stay at safe places, like park and main road. At last，help other people if possible.