







铜山西崩,洛钟东应 is a Chinese idiom (chengyu) meaning “When a major event occurs in one area”. It often triggers a significant reaction or ripple effect in another, sometimes distant, area, indicating a profound interconnectedness. Literally, “When the Copper Mountain in the west collapses, the Luoyang Bell in the east responds”.
During the Western Han Dynasty, a bell in the front hall of Weiyang Palace, the imperial residence, mysteriously began to chime on its own and did not stop for three days and three nights.
Emperor Wu of Han summoned Wang Shuo, who suggested it might be a precursor to conflict or war. The Emperor did not believe him and consulted Dongfang Shuo instead.
Dongfang Shuo explained that copper is the son of the mountain, and the mountain is the mother of copper. Therefore, the bell ringing was a sympathetic response to a mountain collapsing.
Three days later, the Prefect of Nanjun reported that a mountain had indeed collapsed for over twenty li (a traditional Chinese unit of distance).

Turn a Chinese character or sentence into a GIF or MP4
Open the tool →
Choose character parts and animate their colors, together or in stroke order
Open the tool →
Create PNGs with pinyin, highlight character parts or remove strokes
Open the tool →
Picture and word Bingo for your class
Open the tool →铜山西崩,洛钟东应 (tóng shān xī bēng , luò zhōng dōng yīng) is a Chinese idiom (chengyu) meaning “When a major event occurs in one area”.
铜山西崩,洛钟东应 is pronounced tóng shān xī bēng , luò zhōng dōng yīng in Mandarin Chinese.
Literally, 铜山西崩,洛钟东应 means “When the Copper Mountain in the west collapses, the Luoyang Bell in the east responds”. It is used to mean “When a major event occurs in one area”.
铜山西崩,洛钟东应 comes from a classical Chinese story dating back to ancient China. The full story is on this page.
比喻重大事件彼此相互影响。