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Waikabubak Fault
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Situations
Southwest Sumba earthquake and aftershocks
2 clusters · 28 sources · last updated
Latest: Lombok Barat earthquake triggered by Indo-Australian Plate deformation
On October 4, 2026, a magnitude 5.9 earthquake struck the waters of Southwest Sumba, East Nusa Tenggara. The tremor, caused by a normal fault mechanism associated with the Waikabubak fault, resulted in one death of a 73-