Pengchiahsu

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 25.63°N
  • 122.08°E

  • 120 m
    394 ft

  • 281805
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Pengchiahsu.

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

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

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
281805

Unknown - Unrest / Pleistocene

120 m / 394 ft

25.63°N
122.08°E

Volcano Types

Stratovolcano

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Geological Summary

Pengchiahsu is one of five small Pleistocene volcanic islands NE of Taiwan. The summit of the andesitic island (also known as Agincourt) reaches only 129 m above sea level. The age of volcanism is considered to be Pleistocene, but it was reported to display fumarolic activity (Volcanological Society of Japan, 1971). However, there are no more recent reports of fumaroles or other indications of ongoing unrest as of 2015, and the Central Geological Survey makes no mention of them, though it does for other locations.

References

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

Chen C H, 1981. Petrochemical aspects and tectonic implication of Pleistocene andesitic rocks of northern Taiwan and off-shore islets. IAVCEI 1981 Tokyo Mtg Abs, p 50-51.

Ho C S, 1988. An introduction to the geology of Taiwan; explanatory text of the geologic map of Taiwan. Taipei: Central Geol Surv, Ministry Economic Affairs, 192 p.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Katsui Y (ed), 1971. List of the World Active Volcanoes. Volc Soc Japan draft ms, (limited circulation), 160 p.

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

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

Agincourt

The Global Volcanism Program has no photographs available for Pengchiahsu.

Smithsonian Sample Collections Database


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

Affiliated Sites

Large Eruptions of Pengchiahsu 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.