Guguan

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 17.307°N
  • 145.845°E

  • 287 m
    941 ft

  • 284190
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: June 1992 (BGVN 17:06) Cite this Report


No gas emission

A six-member team of USGS volcanologists visited the Commonwealth of the Northern Mariana Islands 11-27 May 1992 at the request of the CNMI Office of Civil Defense. Observations [of Guguan] from an airplane on 13 May and a helicopter on 21 May revealed no gas emission.

Information Contacts: R. Moore, USGS; R. Koyanagi, M. Sako, and F. Trusdell, HVO.

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

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.

06/1992 (BGVN 17:06) No gas emission




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


June 1992 (BGVN 17:06) Cite this Report


No gas emission

A six-member team of USGS volcanologists visited the Commonwealth of the Northern Mariana Islands 11-27 May 1992 at the request of the CNMI Office of Civil Defense. Observations [of Guguan] from an airplane on 13 May and a helicopter on 21 May revealed no gas emission.

Information Contacts: R. Moore, USGS; R. Koyanagi, M. Sako, and F. Trusdell, HVO.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
284190

1883 CE

287 m / 941 ft

17.307°N
145.845°E

Volcano Types

Stratovolcano
Caldera
Pyroclastic cone(s)

Rock Types

Major
Andesite / Basaltic Andesite
Basalt / Picro-Basalt

Tectonic Setting

Subduction zone
Crustal thickness unknown

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
0
0

Geological Summary

The small island of Guguan, only 2.8 km wide, is composed of an eroded volcano on the south, a caldera with a post-caldera cone, and a northern volcano. The latter has three coalescing cones and a breached summit crater that fed lava flows to the west and NW. The 287-m high point of the island is the south rim of the caldera. Freycinet misidentifed Guguan with Alamagan; reported eruptions in 1819 and 1901 (Catalog of Active Volcanoes of the World) actually refer to solfataric activity on Alamagan (Corwin, 1971). The only known historical eruption of Guguan took place between 1882 and 1884 and produced the northern volcano and lava flows that reached the coast.

References

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

Bloomer S H, Stern R J, Smoot N C, 1989. Physical volcanology of the submarine Mariana and Volcano arcs. Bull Volc, 51: 210-224.

Corwin G, 1971. Quaternary volcanics of the Mariana Islands. Unpublished manuscript, 137 p.

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

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

Meijer A, Reagan M, 1983. Origin of K2O-SiO2 trends in volcanoes of the Mariana arc. Geology, 11: 67-71.

Eruptive History


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


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1901 ] [ Unknown ] Discredited    
1883 ± 1 years Unknown Confirmed 2 Historical Observations
[ 1819 ] [ Unknown ] Discredited    

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

Photo Gallery


The northern volcano on the small, 2.8-km-wide island of Guguan is seen here from the west. The only known historical eruption of Guguan took place between 1882 and 1884 and formed the northern cone, which has three coalescing craters. Fresh lava flows that form the left coastline were produced during that eruption.

Photo by Norm Banks, 1981 (U.S. Geological Survey).
The small island of Guguan is seen here in an aerial view from the NW. The 2.8-km-wide island in the central Marianas Islands is composed of an eroded volcano at the south and a caldera with a post-caldera cone. A northern volcano seen here in the foreground, was the site of the only historical eruption of Guguan in the 19th century. The northern volcano has three coalescing cones and a breached summit crater that fed lava flows to the west and NW. The 287-m high point of the island is the south rim of the caldera.

Photo by Dick Moore, 1992 (U.S. Geological Survey).

Smithsonian Sample Collections Database


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

Affiliated Sites

Large Eruptions of Guguan 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.