Blup Blup

{{Short description|Island in Papua New Guinea}}

{{Infobox islands

|name = Blup Blup

|local_name =

|image_name = Schouten Islands (Papua New Guinea) Topography.png

|image_caption = Schouten Islands in Papua New Guinea

|image_alt =

|map_image =

|map_caption = {{map caption|country={{nobold|Ireland}}|location_color=dark green|region=Europe|region_color=green & dark grey}}

|location=

|coordinates ={{coord|3|31|S|144|36|E|display=it|type:isle_source:dewiki}}

|archipelago = Schouten Islands

|area_km2 =3.96

|area_footnotes =

|rank =

|coastline_km =7.49

|highest_mount =

|demonym =

|elevation_m =

|country = Papua New Guinea

|country_largest_city =

|country_largest_city_type =

|country_admin_divisions_title = Province

|country_admin_divisions = East Sepik

|country_1 =

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}}

Blup Blup Island is a small forested island off the northern coast of Papua New Guinea about {{Convert|30|km|abbr=on}} offshore from Cape Girgir and is considered part of the Schouten Islands. It is located at latitude S 3°30'46" and longitude E 144°35'16". The island has a small population and is theoretically part of the Papuan province of East Sepik, although officially it is still a protectorate.{{Clarify|date=January 2018|reason=protectorate of where?}}{{Citation needed|date=January 2018}}

The island is volcanic (a stratovolcano) and a weak thermal area exists on the north west coast.{{Cite web|url=https://www.volcanodiscovery.com/blup_blup.html|title=Blup Blup|website=www.volcanodiscovery.com|access-date=2020-04-04}} The island is only {{Convert|3.5|km|abbr=on}} wide with an irregular coastline and ancient lava flows. It is thought that Blup Blup last erupted in the Holocene. Fresh water is available on the island from wells. Other islands in the vicinity include Kadovar and Wei Island. There is a small islet about {{Convert|200|m|abbr=on|round=50}} off the south-west shore of the island called Mut Mut, where there is a geodetic monitoring facility.