► 形容動詞大規模  [(2)だいきぼ]  [liter]    
meaning:  big  rank: 2☆ 大規模な
地震が
発生した ⇨ A big and wide-range earthquake has happened  
(☛ Big in intensity, and far-reaching in effect)☆ 
市の
中心で大規模な
デモが
行われた ⇨ There was a very large demonstration at the city center  
(☛ Involves many people)More examples:- 大規模デモが政府を動かした ⇨ A massive demonstration forced the government to take actions
 - 大規模な地震が発生した ⇨ A big earthquake occurred