" ▁and ▁r umb ling ▁after sh ock s , ▁and ▁was ▁considered ▁to ▁be ▁part ▁of ▁the ▁ 1 8 1 5 ▁er u ption . ▁This ▁er u ption ▁was ▁recorded ▁at ▁ 2 ▁on ▁the ▁V E I ▁scale . ▁ ▁Ar ound ▁ 1 8 8 0   ±   3 0 ▁years , ▁er u ptions ▁at ▁Mount ▁Tamb ora ▁have ▁been ▁registered ▁only ▁inside ▁the ▁cal der a . ▁It ▁created ▁small ▁la va ▁flows ▁and ▁la va ▁d ome ▁extr us ions ; ▁this ▁was ▁recorded ▁at ▁two ▁on ▁the ▁V E I ▁scale . ▁This ▁er u ption ▁created ▁the ▁D oro ▁Api ▁To i ▁par as it ic ▁cone ▁inside ▁the ▁cal der a . ▁ ▁Mount ▁Tamb ora ▁is ▁still ▁active ▁and ▁minor ▁la va ▁dom es ▁and ▁flows ▁have ▁been ▁extr ud ed ▁on ▁the ▁cal der a ▁floor ▁during ▁the ▁ 1 9 th ▁and ▁ 2 0 th ▁centuries . ▁The ▁last ▁er u ption ▁was ▁recorded ▁in ▁ 1 9 6 7 . ▁However , ▁it ▁was ▁a ▁gentle ▁er u ption ▁with ▁a ▁V E I ▁of ▁ 0 , ▁which ▁means ▁it ▁was ▁non - expl os ive . ▁Another ▁very ▁small ▁er u ption ▁was ▁reported ▁in ▁ 2 0 1 1 . ▁In ▁August ▁ 2 0 1 1 , ▁the ▁alert ▁level ▁for ▁the ▁vol cano ▁was ▁raised ▁from ▁level ▁I ▁to ▁level ▁II ▁after ▁increased ▁activity ▁was ▁reported ▁in ▁the ▁cal der a