The source if the distance of your location is far,P-wavearrive faster,but the vibration is weak,you can leave the room immediately,find the open place of refuge,shear wave general arrival speed is slow,but a great destructive power,so they can escape the classroom,ornot in the classroom to stay.If you are very closedistance seismic belt,the arrival time is very short,suggestions to the classroom wall or wall,hid under the table,to protect the head,earthquake over (usually last10-30s) out of the classroom.If you are in the classroom,teachers should go quickly in command to hold the head,eyes closed,squat down totheir desks.Stop an earthquake,in order to evacuatequickly,leave not crowded.
英语周记,你是一名学生,在教室上课时发生了地震,请写出你如何躲避灾难（五句到十句话左右）