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Isla Isabel

Photo of this volcano
  • Mexico
  • México and Central America
  • Tuff cone(s)
  • Unknown - Evidence Uncertain
  • 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.

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.

Eruptive History

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).

Deformation History

There is no Deformation History data available for Isla Isabel.

Emission History

There is no Emissions History data available for Isla Isabel.

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.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Title: Carta Geolica de la Republica Mexicana
Publisher: Recursos Minerales and Institute de Gelogia
Country: Mexico
Year: 1992
Map Type: Geology
Scale: 1:2,000,000
Map of Carta Geolica de la Republica Mexicana
Title: Mexico
Publisher: DMA Aerospace Center
Country: Mexico
Year: 1985
Series: ONC
Map Type: Topographic
Scale: 1:1,000,000
Map of Mexico
Title: Estado de Sinaloa
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:1,000,000
Map of Estado de  Sinaloa
Title: Estado de Durango
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:1,000,000
Map of Estado de  Durango
Title: Estado de Nayarit
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:500,000
Map of Estado de Nayarit
Title: Tepic
Publisher: INEGI
Country: Mexico
Year: 1980
Map Type: Topographic
Scale: 1:250,000
Map of Tepic
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, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
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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