Banua Wuhu

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 3.138°N
  • 125.491°E

  • -5 m
    -16 ft

  • 267030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: October 1968 (CSLP 68-33)


Only solfatara activity; sea surface has not been reached

Card 0120 (11 October 1968) Only solfatara activity; sea surface has not been reached

"Report on the observation of 14 September, the activity of Banua-wuhu Mahangetang is just in solfatara stage. As far as volcanological service knows it has not risen above the surface of the sea."

Information Contacts: Kusmadinata, Indonesia Volcanological Service.

The Global Volcanism Program has no Weekly Reports available for Banua Wuhu.

Bulletin Reports - Index


Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

09/1968 (BVE 8) Small submarine eruption on 5 September

09/1968 (CSLP 68-33) Eruption on 6 September from submarine volcano

10/1968 (CSLP 68-33) Only solfatara activity; sea surface has not been reached




Information is preliminary and subject to change. All times are local (unless otherwise noted)


September 1968 (BVE 8)


Small submarine eruption on 5 September

A small submarine eruption began at 1600 (local time) on 5 September 1968; no end date given. Ocean water near the crater became hot and turbid. The eruption was preceded by an earthquake at 1430 the same day.

Information Contacts: Djajadi Hadikisumo, Geological Survey of Indonesia.


September 1968 (CSLP 68-33)


Eruption on 6 September from submarine volcano

Card 0047 (14 September 1968) Submarine volcano near Mahengetan considered active and dangerous

The following was received in response to a query about the reported volcanic activity. "There are four volcanoes in the area: Awu in Sangir Island erupted August 1966, Karangeta at Siau Island, Ruang at Tagulandang Island, and submarine volcano near Mahengetan not far from Sangir Island. Mount Awu not considered dangerous, Mahengetan considered active and dangerous by local volcanologist."

Card 0048 (18 September 1968) Eruption started on 6 September

The following cable report was received on 16 September 1968. "Submarine volcano (Banua Wuhu) near island Mahengetang, Sangihe Islands, Celebes Sea, Indonesia, started erupting on 6 September 1968, showing activity, and decreasing intensity."

Information Contacts:
Card 0047 (14 September 1968) Philippine Consul General, Manado, Celebes, Indonesia.
Card 0048 (18 September 1968) Philippine Consul General, Manado, Celebes, Indonesia.


October 1968 (CSLP 68-33)


Only solfatara activity; sea surface has not been reached

Card 0120 (11 October 1968) Only solfatara activity; sea surface has not been reached

"Report on the observation of 14 September, the activity of Banua-wuhu Mahangetang is just in solfatara stage. As far as volcanological service knows it has not risen above the surface of the sea."

Information Contacts: Kusmadinata, Indonesia Volcanological Service.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
267030

1919 CE

-5 m / -16 ft

3.138°N
125.491°E

Volcano Types

Submarine
Lava dome

Rock Types

Major
Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Oceanic crust (< 15 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
359
480
4,586
69,756

Geological Summary

The Banua Wuhu submarine volcano in the Sangihe Islands rises more than 400 m from the sea floor to form a shoal less than 5 m below sea level. Several ephemeral islands were constructed during the 19th and 20th centuries. An island 90 m high was formed in 1835, but dwindled to only a few rocks by 1848. A new island formed in 1889 was 50 m high in 1894. Five new craters were formed during an eruption that built a new island in 1904. Another new island that formed in 1919 had disappeared by 1935.

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Kusumadinata K, 1979. Data Dasar Gunungapi Indonesia. Bandung: Volc Surv Indonesia, 820 p.

Morrice M G, Jezek P A, Gill J B, Whitford D J, Monoarfa M, 1983. An introduction to the Sangihe arc: volcanism accompanying arc-arc collision in the Molucca Sea, Indonesia. J Volc Geotherm Res, 19: 135-165.

Neumann van Padang M, 1951. Indonesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 1: 1-271.

Zelenov K K, 1964. The submarine volcano Banua Wuhu, Indonesia. Bandung Inst Tech Dept Geol Contr, 55: 19-34.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1968 Sep 5 ] [ 1968 Sep 9 ± 4 days ] Uncertain 0  
1918 Jul 18 1919 Dec 1 ± 30 days Confirmed 3 Historical Observations
1904 Aug 27 Unknown Confirmed 2 Historical Observations
1904 Apr 17 1904 Apr 18 Confirmed 2 Historical Observations
1895 Jul 1895 Dec 26 ± 5 days Confirmed 2 Historical Observations
1889 Sep 6 1889 Sep 9 Confirmed 2 Historical Observations
1835 Apr 23 1835 Apr 26 Confirmed 2 Historical Observations

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.


Synonyms

Banua Bauja | Banoea Woehoe | Mahengetang | Banua Bauya

The Global Volcanism Program has no photographs available for Banua Wuhu.

Smithsonian Sample Collections Database


A listing of samples from the Smithsonian collections will be available soon.

Affiliated Sites

Large Eruptions of Banua Wuhu Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.