Chinese idiom · 成语
平地一声雷
Meaning
Thunder from flat ground; a sudden, shocking event.
Character by character
Origin and story
Literary imageWei Zhuang's lyric Xi Qian Ying, beginning with street drums and the opening of the palace gates, pictures the announcement of examination success. A phoenix appears to bring a golden list from the clouds; its arrival is like a thunderclap over level ground. The city suddenly fills with carriages, horses, and people eager to watch the newly successful men.
The fantastical imagery expresses how dramatically an examination result could transform someone's standing. Later usage retains that sense of startling emergence, especially sudden fame or success, and can also describe unexpected major news. The thunder is a metaphor within the poem, not a reported weather event.
Sources and further reading
In everyday life
这个默默无闻的乐队突然拿了大奖，真是平地一声雷。
The obscure band suddenly won a major award—it was a thunderbolt out of nowhere.
Often emphasizes sudden success or fame; also used for startling major developments.