If earthquake happened,firstly,don't panic and calm down.Secondly,find some safe place to stay and don't run in such a hurry.If in the room,one should hide himself/herself under something hard,such as desk,talbe or even bed and keep away from shelf and cupboard,and never take a lift to go downstairs.If in the open air,find an open place and never get close to cars or waterside.Thirdly,because when earthquake happen,there are also lots of other troubles to take place,for example fire.So we should help each other when we meet trouble.At last,no matter how strong the earthquake is,if only we have the belief to defeat it and never give up,we must be able to overcome any difficulties.