Dakataua

The Dakataua Caldera is located at the northern tip of the Willaumez Peninsula, New Britain, Papua New Guinea. The peninsula includes the 350 m high andesitic Mount Makalia stratovolcano. [1] The last major collapse of Dakataua was during the Holocene around 800 CE.[2] The most recent eruption on the caldera's rim was Mount Makalia in 1890, producing lava flows and cinder cones.[3]

Dakataua
Dakataua lake on the North tip of the Willaumez Peninsula, left of the Pago volcano. On the right there is a steam plume over the sea from the Ulawun volcano.
Highest point
Elevation400 m (1,300 ft)
Coordinates5°3′20″S 150°6′30″E 
Geography
Geology
Mountain typeStratovolcano
Volcanic arc/beltBismarck volcanic arc
Last eruption1895 ± 5 years

Caldera lake

Dakataua caldera lake is about 76 m above sea level, has total surface area 48 km2 (19 sq mi), and the maximum depth approximately 120 m. [4] It is horseshoe shaped, roughly bisected by a peninsula. [5] It is a freshwater lake that is alkaline with a pH of up to 8.2. It is presumed to be formed by rainwater gradually filling in the caldera. [6] While the lake supports various kinds of life, it does not support any species of fish. [7]

Migo the Lake Monster

There is a folk legend that a monster called the migo (or masali) inhabits the lake. In 1993 a Japanese film crew lead by Tetsuo Nagata captured what they claimed to be the migo on film. It is presumed that the creature in the video is actually a salt water crocodile from the ocean surrounding the lake. [8]

References
  1. Dakataua Global Volcanism Program · Department of Mineral Sciences · National Museum of Natural History Smithsonian Institution © 2013
  2. "Holocene explosive eruptions of Witori and Dakataua caldera volcanoes in West New Britain, Papua New Guinea". Retrieved August 19, 2020.
  3. "Dakataua Volcano World". Retrieved August 19, 2020.
  4. E. BALL, J. GLUCKSMAN A limnological survey of Lake Dakataua, a large calderalake on West New Britain, Papua New Guinea, with comparisons to Lake Wisdom, a younger nearby caldera lake. Freshwater Biology (10)73, 1980
  5. "Global Volcanism Program". Retrieved August 19, 2020.
  6. "Lake Dakataua". Retrieved August 19, 2020.
  7. "A liminological survey of Lake Dakataua". Retrieved August 19, 2020.
  8. "Filming Migo the Monster". Retrieved August 19, 2020.
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