Report on Iya (Indonesia) — 2 November-8 November 2016
Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
2 November-8 November 2016
Managing Editor: Sally Kuhn Sennert
Please cite this report as:
Global Volcanism Program, 2016. Report on Iya (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 2 November-8 November 2016. Smithsonian Institution and US Geological Survey.
8.891°S, 121.641°E; summit elev. 618 m
All times are local (unless otherwise noted)
PVMBG reported that after an increase on 29 September seismicity at Iya decreased significantly, with the number of deep volcanic earthquakes slowing from a rate of five per day or less, to none on 22 October. On 31 October the Alert Level was lowered to 1 (on a scale of 1-4).
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.