<prompt> Qedela le nkulumo elandelayo: Kucatshangwa ukuthi ukuqhuma kwe-Rinjani okwakha i-caldera kwenzeka ngekhulu le-13. Njengoba yabhalwa ngasekupheleni kwentwasahlobo noma ehlobo lika-1257, le  <response>: Ukuqhuma kwe-Samalas ngo-1257 manje sekubhekwa njengomthombo ongaba khona wamandla amakhulu esibabule atholakala ezibonelweni zezinhlayiya zeqhwa ezisakazeke kabanzi futhi kungenzeka ukuthi kwakuwukuqhuma kwentaba-mlilo okunamandla kakhulu selokhu abantu bafunda ukubhala. Kungenzeka ukuthi ukuqhuma okukhulu kwabangela isimo sezulu esipholile nesivuno esibi. Ngaphambi kwalokhu kuqhuma, i - Segara Anak caldera yayiyintaba - mlilo ebizwa ngokuthi i - Samalas, eyayiphakeme kune - Rinjani. 