Rasshua

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 47.77°N
  • 153.02°E

  • 956 m
    3136 ft

  • 290220
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Weekly Report: 6 February-12 February 2013


SVERT reported that a thermal anomaly over Rasshua was detected in satellite images on 6 February.

Source: Sakhalin Volcanic Eruption Response Team (SVERT)


Most Recent Bulletin Report: March 1989 (SEAN 14:03)


Fumarolic areas in the crater

Four groups of fumaroles were observed in a crater, breached to the SE, during a 14 January overflight.

Information Contacts: G. Steinberg, Yuzhno-Sakhalinsk.

Index of Weekly Reports


2013: February

Weekly Reports


6 February-12 February 2013

SVERT reported that a thermal anomaly over Rasshua was detected in satellite images on 6 February.

Source: Sakhalin Volcanic Eruption Response Team (SVERT)


Index of Bulletin Reports


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.

03/1989 (SEAN 14:03) Fumarolic areas in the crater




Bulletin Reports

All information contained in these reports is preliminary and subject to change.


03/1989 (SEAN 14:03) Fumarolic areas in the crater

Four groups of fumaroles were observed in a crater, breached to the SE, during a 14 January overflight.

Information Contacts: G. Steinberg, Yuzhno-Sakhalinsk.
Download or Cite this Report

The elongated 6 x 13 km island of Rasshua in the central Kuriles contains three overlapping central cones within a 6 km caldera whose eastern margin is beyond the shoreline. An eroded central cone was constructed during the late Pleistocene, along with an isolated cone near the NW coast. Two Holocene cones were built within the crater of the central cone. The westernmost forms the 956 m high point of the island and is the source of lava flows that flooded the crater floor and descended to the coast. The easternmost cone, active during historical time, is truncated by a 500-m-wide crater that is breached to the SE. This crater may have formed during a violent eruption in 1846. The only other known historical eruption produced weak explosions in 1957. Fumarolic activity continues in the eastern crater and in the saddle between the two summit cones.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1957 Oct Unknown Confirmed 1 Historical Observations
1846 Unknown Confirmed 3 Historical Observations Eastern cone ?

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

Rashowa | Kotiato San | Harotsiatsianopori | Rasyova

Cones

Feature Name Feature Type Elevation Latitude Longitude
Razval, Mount Cone 736 m
Clouds surround the elongated 6 x 13 km island of Rasshua in the central Kurils in this Space Shuttle image (with north to the lower left). The island contains overlapping central cones within a 6-km-wide caldera that cuts the northern and southern parts of the island and whose eastern margin is beyond the shoreline. The unvegetated central cone complex (left-center) is capped by two Holocene cones. The westernmost forms the 956 m high point of the island, and the easternmost has been active during historical time.

NASA Space Shuttle image ISS005-E-6023, 2002 (http://eol.jsc.nasa.gov/).

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.

Erlich E N, 1986. Geology of the calderas of Kamchatka and Kurile Islands with comparison to calderas of Japan and the Aleutians, Alaska. U S Geol Surv Open-File Rpt, 86-291: 1-300.

Gorshkov G S, 1958. Kurile Islands. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 7: 1-99.

Gorshkov G S, 1970. Volcanism and the Upper Mantle; Investigations in the Kurile Island Arc. New York: Plenum Publishing Corp, 385 p.

Volcano Types

Stratovolcano
Somma
Pyroclastic cone(s)

Tectonic Setting

Subduction zone
Oceanic crust (< 15 km)

Rock Types

Major
Andesite / Basaltic Andesite
Dacite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
9
9
200

Affiliated Databases

Large Eruptions of Rasshua 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.