Isla Isabel

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 21.848°N
  • 105.886°W

  • 95 m
    312 ft

  • 341023
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Isla Isabel.

The Global Volcanism Program has no Weekly Reports available for Isla Isabel.

The Global Volcanism Program has no Bulletin Reports available for Isla Isabel.

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

Photo Gallery


Isla Isabel, a complex of tuff cones and associated lava flows, forms a small 1.5-km-long island located in the Pacific Ocean 30 km off the coast of Narayit state. The island is seen here from the SE with Cerro el Faro tuff cone at the left and the spires of the Islotes Las Monas at the right. Isla Isabel is a wildlife sanctuary whose rocks and vegetation are mantled with white-colored guano. Spectacular exposures of the interior of the tuff cones forming the island can be found in sea cliffs of the main island and offshore islets.

Photo by Jim Luhr, 1999 (Smithsonian Institution).
See title for photo information.
Wave erosion of a tuff cone off the western coast of Isla Isabel has produced the jagged profile of the 100-m-wide southernmost seastack in the Islotes Las Monas. The three guano-covered tuff cone remnants forming the Islotes Las Monas lie within about 200 m of the eastern coast of Isla Isabel, which can be seen at the right.

Photo by Jim Luhr, 1999 (Smithsonian Institution).
See title for photo information.
A sea-cliff exposure at the southern end of Islota Pelón, located off the NW coast of Isla Isabel, shows a dramatic angular uncomformity between two generations of dipping tuff beds. The large volcanic bomb perched on the rim at the top lies on dipping tuff beds in the interior of the tuff cone. Wave erosion has left only the arcuate western rim of Islota Pelón, whose vent lies out of view to the right.

Photo by Jim Luhr, 1999 (Smithsonian Institution).
See title for photo information.
Islota Pelón (upper left), just off the NW coast of Isla Isabel, is the outer rim of an elliptical, mostly submerged tuff cone whose SE rim (center) is located on the tip of the main island. The poorly distinguishable narrow dark gray streak extending diagonally from the lower right is part of the Planicie lava flow, which extends to the bay at the center of the photo and is the product of the youngest eruption on Isla Isabel.

Photo by Jim Luhr, 1995 (Smithsonian Institution).
See title for photo information.
Flat-topped Cerro El Faro tuff cone (upper right) lies across a low isthmus at the southernmost tip of Isla Isabel. It is seen here across the Acantilado Mayor Bay from Cerro del Mirador, the high point of the small 1.5-km-long island. Wave erosion has truncated the flank of Monte Transverso on the left. An olivine-basaltic lava flow forms the flat isthmus connecting the two tuff cones.

Photo by Jim Luhr, 1999 (Smithsonian Institution).
See title for photo information.
Buildings of a biological research station and fishermen's shacks line the shores of Playa Chica on the SE side of Isla Isabel. The two spires at the upper left are the Islotes Las Monas, eroded remnants of an offshore tuff cone. The lake-filled Laguna Fragatas maar can be seen at the left in front of the spires of the Islotes Las Monas. The small 1.5-km-wide uninhabited Isla Isabel is a wildlife sanctuary. Eruptive activity at Isla Isabel may have continued into the Holocene.

Photo by Jim Luhr, 1999 (Smithsonian Institution).
See title for photo information.

Smithsonian Sample Collections Database


The following 46 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections. Catalog number links will open a window with more information.

Catalog Number Sample Description
NMNH 117623-1 Scoria
NMNH 117623-10 Dunite xenolith
NMNH 117623-11 Peridotite xenolith
NMNH 117623-12 Basalt
NMNH 117623-13 Basalt
NMNH 117623-14 Basalt
NMNH 117623-15 Scoria
NMNH 117623-16 Harzburgite xenolith
NMNH 117623-17 Peridotite xenolith
NMNH 117623-18 Peridotite xenolith
NMNH 117623-19 Gabbro
NMNH 117623-2 Trachybasalt
NMNH 117623-20 Peridotite xenolith
NMNH 117623-21 Harzburgite xenolith
NMNH 117623-22 Harzburgite xenolith
NMNH 117623-23 Harzburgite xenolith
NMNH 117623-24 Peridotite xenolith
NMNH 117623-25 Peridotite xenolith
NMNH 117623-26 Harzburgite xenolith
NMNH 117623-27 Gabbro xenolith
NMNH 117623-28 Peridotite xenolith
NMNH 117623-29 Lherzolite xenolith
NMNH 117623-3 Basalt
NMNH 117623-30 Basalt
NMNH 117623-31 Basalt
NMNH 117623-32 Scoria
NMNH 117623-33 Plagioclase
NMNH 117623-34 Alkali basalt
NMNH 117623-35 Tuff
NMNH 117623-36 Scoria
NMNH 117623-37 Harzburgite xenolith
NMNH 117623-38 Peridotite xenolith
NMNH 117623-39 Peridotite xenolith
NMNH 117623-4 Basalt
NMNH 117623-40 Peridotite xenolith
NMNH 117623-41 Dunite xenolith
NMNH 117623-42 Peridotite xenolith
NMNH 117623-43 Gabbro
NMNH 117623-44 Peridotite xenolith
NMNH 117623-45 Peridotite xenolith
NMNH 117623-46 Peridotite xenolith
NMNH 117623-5 Peridotite xenolith
NMNH 117623-6 Scoria
NMNH 117623-7 Basalt
NMNH 117623-8 Dunite xenolith
NMNH 117623-9 Harzburgite xenolith

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