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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 21.83°N
  • 121.18°E

  • -115 m
    -377 ft

  • 281020
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Unnamed.

The Global Volcanism Program has no Weekly Reports available for Unnamed.

The Global Volcanism Program has no Bulletin Reports available for Unnamed.

Basic Data

Volcano Number

Last Known Eruption



Unknown - Evidence Uncertain

-115 m / -377 ft


Volcano Types


Rock Types

No Data (checked)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)


Within 5 km
Within 10 km
Within 30 km
Within 100 km

Geological Summary

Minor submarine eruptions were reported at two locations on 15 January 1854, when the ship "Susquehannah" passed the southern tip of Taiwan. Little is known about volcanism in this area, although the Catalog of Active Volcanoes of the World (Kuno, 1962) and Liu (1986, pers. comm.) mentioned an 1854 eruption here, based on accounts in Sapper (1917). Liu listed a depth of 115 m for this volcano. Both the nature of the reported eruptive phenomena and its location are uncertain due to the lack of sufficient detail in the original report.


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

Chen C H, Shen J J-S, 2005. A refined historical record of volcanic eruptions around Taiwan: tectonic implications in the arc-continent collision area. Terrestrial, Atmosph, Oceanic Sci, 16: 331-343.

Kuno H, 1962. Japan, Taiwan and Marianas. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 11: 1-332.

Liu J, 1986. (pers. comm.).

Sapper K, 1917. Katalog der Geschichtlichen Vulkanausbruche. Strasbourg: Karl J Trubner, 358 p.

Sapper K, 1927. Vulkankunde. Stuttgart: J Engelhorns Nachf, 424 p.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1854 Jan 15 ] [ Unknown ] Uncertain 0  

The Global Volcanism Program has no synonyms or subfeatures listed for Unnamed.

Photo Gallery

Submarine eruptions were reported in 1854 at a location SE of the southern tip of Taiwan (lower left). Eruptions were seen at two places when a ship passed the southern tip of Taiwan. The depth at this location is about 115 m. Lan Yü Island, about 130 km east of the southern tip of Taiwan, lies at the far right in this NASA Landsat image (with north to the top). The city of Hengch'un lies along the west coast of the southern peninsula of Taiwan, above the cloud bank.

NASA Landsat7 image (worldwind.arc.nasa.gov)

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Unnamed 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.