Wai Sano

Photo of this volcano
Google Earth icon
  Google Earth Placemark
  • Indonesia
  • Indonesia
  • Caldera
  • Unknown - Undated Evidence
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 8.72°S
  • 120.02°E

  • 903 m
    2962 ft

  • 264060
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Wai Sano.

The Global Volcanism Program has no Weekly Reports available for Wai Sano.

The Global Volcanism Program has no Bulletin Reports available for Wai Sano.

Wai Sano is a low, elliptical caldera, 3.5 x 2.5 km wide, at the western end of Flores Island. Wai Sano contains a large caldera lake whose surface is 260 m below the 903 m high point on the southern caldera rim. The SE caldera wall truncated the slopes of 1632-m-high Gunung Cerak. Two solfataras are located at the SE shore of the lake. No historical eruptions are known from Wai Sano, which was mapped as Holocene in age (Ratman and Yasin, 1978).

The Global Volcanism Program is not aware of any Holocene eruptions from Wai Sano. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Wai Sano 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.



Cones
Feature Name Feature Type Elevation Latitude Longitude
Poco Dedehg
    Potjo Dedehg
Cone 1362 m 8° 44' 0" S 120° 1' 0" E
Wai Sano, the westernmost Holocene volcano on Flores Island, is a low, elliptical caldera, 3.5 x 2.5 km wide. Wai Sano contains a large caldera lake whose surface is about 640 m above sea level. The SE caldera wall truncated the slopes of 1632-m-high Gunung Cerak, and the low point on the caldera rim is on the eastern side. Two solfataras are located at the SE shore of the lake. No historical eruptions are known from Wai Sano.

Photo published in Kemnerling 1929, "Vulkanen van Flores" (courtesy of Volcanological Survey of Indonesia).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Kemmerling G L L, 1929. Vulkanen van Flores. Vulk Seism Meded Dienst Mijnw Ned-Indie, 10: 1-138.

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

Ratman N, Yasin A, 1978. Geologic map of Komodo quadrangle, Nusatenggar. Geol Surv Indonesia, 1:250,000 scale.

Stolz A J, Varne R, Davies, G R, Wheller G E, Foden J D, 1990. Magma source components in an arc-continent collision zone: the Flores-Lembata sector, Sunda arc, Indonesia. Contr Mineral Petr, 105: 585-601.

van Bemmelen R W, 1949b. The Geology of Indonesia. The Hague: Government Printing Office, v 1, 732 p.

Volcano Types

Caldera

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Dacite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
127,347
127,347
242,184
831,863

Affiliated Databases

Large Eruptions of Wai Sano 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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.