Peneliti PVMBG Temukan Jejak Tsunami Purba 1889 di Sisi Gunung Gamalama Ternate https://ift.tt/9LJPZKe
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Peneliti PVMBG Temukan Jejak Tsunami Purba 1889 di Sisi Gunung Gamalama Ternate https://ift.tt/9LJPZKe
Tempo Teknologi 
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