The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported a decrease in seismicity at Iya during 5 November 2024-7 January 2025. Deep earthquakes indicating a magma presence continued to be recorded, and continuous tremor persisted but with a decreasing amplitude. In general, white emissions rose as high as 500 m above the summit and drifted in multiple directions, though emissions that rose 10-200 m above the crater rim during 1-7 January were characterized as white-and-gray. At 1800 on 8 January the Alert Level was lowered to 2 (on a scale of 1-4) and the public was warned to stay 2 km away from the active crater.

Geological Summary. Gunung Iya is the southernmost of a group of three volcanoes comprising a small peninsula south of the city of Ende on central Flores Island. The cones to the north, Rooja and Pui, appear to be slightly older and have not shown historical activity, although Pui has a youthful profile (a reported 1671 eruption of Pui was considered to have originated from Iya volcano). Iya, whose truncated southern side drops steeply to the sea, has had numerous moderate explosive eruptions during historical time.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)