▁just ▁seven ▁flows ▁dam aged ▁ ▁of ▁far ml and , ▁destroyed ▁ 1 7 , 5 4 4 ▁homes , ▁and ▁killed ▁ 1 , 1 4 2 ▁people . ▁ ▁During ▁the ▁Cultural ▁Revolution , ▁the ▁area ▁received ▁a ▁bit ▁of ▁local ▁not or iety ▁for ▁its ▁flag ging ▁gra in ▁production . ▁The ▁" ex per ien ces ▁of ▁Li ▁County " ▁were ▁used ▁by ▁regional ▁officials ▁to ▁ca ution ▁against ▁implementation ▁of ▁T ach ai - style ▁collect iv ism ▁in ▁the ▁mid - 1 9 7 0 s . ▁The ▁collect ive ▁far ms ▁in ▁the ▁area ▁saw ▁decre asing ▁year - on - year ▁yields ▁of ▁gra in ▁until , ▁by ▁ 1 9 7 6 , ▁all ▁ 2 9 ▁of ▁the ▁county ' s ▁communes ▁were ▁cons uming ▁more ▁gra in ▁than ▁they ▁produced . ▁This ▁prov oked ▁official ▁action , ▁which ▁den ounced ▁the ▁compla ints ▁as ▁" s ab ot age " ▁and ▁" po ison ", ▁in ▁the ▁period ▁between ▁the ▁fall ▁of ▁the ▁Gang ▁of ▁Four ▁and ▁the ▁rise ▁of ▁D eng ▁X ia op ing ' s ▁economic ▁re forms . ▁ ▁The ▁area ▁is ▁also ▁subject ▁to ▁earth qu akes , ▁with ▁ 2 5 ▁recorded ▁as ▁having ▁a ▁magnitude ▁of ▁ 5 . 0 ▁or ▁higher . ▁The ▁largest ▁recorded ▁was ▁an ▁ 8 . 0 - m agn itude ▁qu ake ▁that ▁struck ▁on ▁July ▁ 2 1 , ▁ 1 6 5 4 ; ▁most ▁recently