Guguan

Photo of this volcano
  • 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) Citation IconCite 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) Citation IconCite 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.

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).
See title for photo information.
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).
See title for photo information.

Smithsonian Sample Collections Database


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

Affiliated Sites