Look at the picture and answer this question. (1) Write the longitude and latitude of the epicenter of the Lushan M7.0 earthquake in Ya 'an, Sichuan. (2) The epicenter of Lushan County is located in _

Look at the picture and answer this question. (1) Write the longitude and latitude of the epicenter of the Lushan M7.0 earthquake in Ya 'an, Sichuan. (2) The epicenter of Lushan County is located in _ _ _ _ _ _ _ District of Chengdu. (1) As can be seen from the figure, the longitude and latitude of the epicenter of the Lushan earthquake of magnitude 7.0 in Ya 'an, Sichuan Province is (30.3 N,103.0e); );

(2) On the longitude and latitude network map, longitude indicates the north-south direction and latitude indicates the east-west direction, and Lushan County, the epicenter, is located in the southwest of Chengdu;

(3) As can be seen from the figure, Lushan County, Ya 'an, Sichuan Province is located at the collision place between Eurasian plate and Indian Ocean plate, with active crust and frequent earthquakes;

(4) The Lushan earthquake in Ya 'an, Sichuan Province was caused by the extrusion and collision between the Eurasian plate and the Indian Ocean plate, and it was caused by crustal changes.

(5) China is located at the junction of Asia-Europe plate and Pacific plate, with frequent crustal activities and earthquakes. Therefore, residential buildings should use lighter building materials, which can reduce the possible injuries and losses caused by earthquakes.

So the answer is: (1) 30.3 N,103.0e; ; (2) Southwest; (3) Europe and Asia; (4) a; (5) Use lighter building materials.