Utila Island

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 16.1°N
  • 86.9°W

  • 74 m
    243 ft

  • 343160
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Utila Island.

The Global Volcanism Program has no Weekly Reports available for Utila Island.

The Global Volcanism Program has no Bulletin Reports available for Utila Island.

The island of Utila in the Carribean Sea off the northern coast of Honduras is the easternmost and lowest of the Bay Islands at the southern edge of the submarine Bartlett Trough. Utila is capped by a thin veneer of Holocene basaltic rocks at its eastern end (McBirney and Bass, 1969). Basaltic lavas and tuffs were erupted onto a coral-capped erosional surface. Stuert Hill (also spelled Stuart Hill) is a pyroclastic cone that was constructed at the center of the volcanic terrain, and Pumpkin Hill is a small littoral cone located along the NE coast of the island. The high point of the island is Pumpkin Hill, which rises only 74 m above sea level.

The Global Volcanism Program is not aware of any Holocene eruptions from Utila Island. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Utila Island 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
Pumpkin Hill Cinder cone 74 m 16° 7' 0" N 86° 53' 0" W
Stuert Hill
    Stuart Hill
Cinder cone 51 m 16° 6' 0" N 86° 54' 0" W
Pumpkin Hill, a small pyroclastic cone at the NE end of Utila Island, is seen here across a forest from Stuert Hill, the other pyroclastic cone on the eastern side of the island. The two cones lie about 2 km apart and were constructed over flat-lying terraces that cover much of the elongated, 3 x 11 km wide island. Alkaline olivine-basaltic lava flows erupted from the cones cover much of the eastern side of the island and underlie the forest in this photo. The Caribbean Sea lies in the background to the NE.

Photo by Rick Wunderman, 1999 (Smithsonian Institution).
The low peak in the background is Stuert Hill, a pyroclastic cone that rises only 51 m above the Caribbean Sea at the eastern end of Utila Island. The cone is seen here from across East Harbor at the SE end of the island. The cone forms an arcuate ridge composed of ejected basaltic tuffs and abundant blocks that include coral fragments, limestone, and metamorphic rocks.

Photo by Rick Wunderman, 1999 (Smithsonian Institution).
Pumpkin Hill, a low pyroclastic cone reaching only 74 m above sea level, is the high point of Utila Island. The cone occupies the NE tip of the island and consists of stratified basaltic lapilli and tuffs containing abundant blocks and small fragments of coral. The vent of the cone appears to lie on this side near its northern base, but only the southern half of the cone remains.

Photo by Rick Wunderman, 1999 (Smithsonian Institution).
The low pyroclastic cone Stuert Hill (also spelled Stuart Hill) rises beyond Utila, the largest village on the island of the same name. A ferry connects the village of Utila, formerly known as East Harbor, to the mainland of Honduras. Most of the island consists of flat-lying uplifted coral reefs; volcanic rocks are found only at the eastern end of the island.

Photo by Rick Wunderman, 1999 (Smithsonian Institution).
The low peak in the distance is Pumpkin Hill, a pyroclastic cone at the NE end of Utila Island. The small 74-m-high cone was erupted onto a coral-capped erosional surface forming the cliffs in the foreground and marks the high point on the island. Basaltic lavas and tuffs blanket terraces on the NE side of Utila. The island lies in the Caribbean Sea off the northern coast of Honduras and is the easternmost and lowest of the Bay Islands at the southern edge of the submarine Bartlett Trough.

Photo by Rick Wunderman, 1999 (Smithsonian Institution).

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.

McBirney A R, Bass M N, 1969. Geology of Bay Islands, Gulf of Honduras. Amer Assoc Petrol Geol Mem, 11: 229-243.

Williams H, McBirney A R, 1969. Volcanic history of Honduras. Univ Calif Pub Geol Sci, 85: 1-101.

Volcano Types

Pyroclastic cone(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
2,260
2,260
2,260
650,270

Affiliated Databases

Large Eruptions of Utila Island 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.