Granada

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 11.92°N
  • 85.98°W

  • 300 m
    984 ft

  • 344101
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Granada.

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

The Global Volcanism Program has no Bulletin Reports available for Granada.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
344101

Unknown - Evidence Credible

300 m / 984 ft

11.92°N
85.98°W

Volcano Types

Fissure vent(s)
Pyroclastic cone(s)

Rock Types

Major
Basalt / Picro-Basalt
Minor
Dacite

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
105,952
137,880
678,798
2,722,372

Geological Summary

A semi-arcuate, N-S-trending fissure located between the city of Granada and the eastern rim of Apoyo caldera was the source of the Granada alignment of small cinder cones and craters. The lineament (also known as the La Joya alignment after La Joya explosions craters SW of Granada) cuts across the flanks of Apoyo caldera only 2 km from its rim. However, the Granada alignment is structurally distinct from the caldera and is analogous to the Nejapa-Miraflores alignment north of Masaya volcano. The lineament extends from north of Granada to the northern flanks of Mombacho volcano and is characterized by the eruption of basaltic lavas and tephras compositionally similar to mid-ocean ridge basalts. A series of interconnecting collapse-explosion pits similar to those at Nejapa-Miraflores lies immediately east of the Granada cinder cone alignment. The Granada lineament originated about 12,000 years ago, and the latest eruptions may have occurred as recently as about 2000 years ago.

References

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

Navarro M, 1998. (pers. comm.).

Sussman D, 1985. Apoyo Caldera, Nicaragua: a major Quaternary silicic eruptive center. J Volc Geotherm Res, 24: 249-282.

van Wyk de Vries B, 1993. Tectonics and magma evolution of Nicaraguan volcanic systems. Unpublished PhD thesis, Open Univ, Milton Keynes, 328 p.

Walker J A, 1984. Volcanic rocks from the Nejapa and Granada cinder cone alignments, Nicaragua, Central America. J Petr, 25: 299-342.

The Global Volcanism Program is not aware of any Holocene eruptions from Granada. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Granada 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
Chanal, Cerro el Pyroclastic cone
Granadito Pyroclastic cone
Joya, La Vent
San Antonio, Cerro Pyroclastic cone

Photo Gallery


A quarry exposes bedded oxidized scoria layers in a cinder cone of the fissure-fed Granada alignment. The cone was constructed along a semi-arcuate, N-S-trending fracture located between the city of Granada and the northern flanks of Mombacho volcano, east of the rim of Apoyo caldera. The lineament is also known as the La Joya alignment, after the explosion craters located SW of Granada. The alignment originated about 12,000 years ago, and its latest eruptions may have occurred as recently as about 2000 years ago.

Photo by Lee Siebert, 1998 (Smithsonian Institution).
Two major scarps cutting Mombacho volcano (left-center) were the sources of major debris avalanches. The arcuate peninsula and island chain extending into Lake Nicaragua (known as Las Isletas or Isletas de Granada) was produced by collapse of Mombacho to the NE. The island at the right is Zapatera, a small shield volcano and maar complex. The lake at the far left fills late-Pleistocene Apoyo caldera, and the roughly N-S-trending Granada cinder cone alignment lies NNW of Mombacho and east of Lake Apoyo in this NASA Space Shuttle image (with north to the upper left).

NASA Space Shuttle image STS081-742-25, 1997 (http://eol.jsc.nasa.gov/).

Smithsonian Sample Collections Database


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

Affiliated Sites

Large Eruptions of Granada 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.