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Hankow Reef

Photo of this volcano
  • Papua New Guinea
  • Melanesia and Australia
  • Submarine
  • Unknown - Evidence Uncertain
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 4.883°S
  • 146.717°E

  • -5 m
    -16 ft

  • 251041
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Hankow Reef.

The Global Volcanism Program has no Weekly Reports available for Hankow Reef.

The Global Volcanism Program has no Bulletin Reports available for Hankow Reef.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History

The Global Volcanism Program is not aware of any Holocene eruptions from Hankow Reef. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Hankow Reef page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

Deformation History

There is no Deformation History data available for Hankow Reef.

Emission History

There is no Emissions History data available for Hankow Reef.

Photo Gallery

Hankow Reef is partially truncated just below the upper left corner of the cloud-covered portion of this NASA Landsat composite image (with north to the top). The possible existence of a now-submerged volcano named Yomba off the coast of Papua New Guinea is inferred from oral tradition and is considered to likely be at the location of Hankow Reef. The reef lies SE of Bagabag Island (upper left) and NW of Long Island, the larger island at the lower right. Crown Island lies beneath the cloud cover between Long Island and Hankow Reef.

NASA Landsat7 image (worldwind.arc.nasa.gov)
See title for photo information.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.


Title: Long
Publisher: PNG Topographic Survey
Country: PNG
Year: 1977
Series: T601
Map Type: Topographic
Scale: 1:100,000
Map of Long

Title: Madang
Publisher: US Army Map Service
Country: PNG, Indonesia
Year: 1943
Series: AMS
Map Type: Topographic
Scale: 1:1,000,000
Map of Madang
Smithsonian Sample Collections Database

There are no samples for Hankow Reef in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

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