Guazapa

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 13.9°N
  • 89.12°W

  • 1438 m
    4717 ft

  • 343052
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Guazapa.

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

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

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


Guazapa is a massive, eroded Pleistocene stratovolcano that rises 1000 m above the surrounding countryside NE of the capital city of San Salvador. The 1438-m-high basaltic volcano is seen here from the SW. It has no trace of its original summit crater, and deep canyons cut its flanks. Several relatively young pyroclastic cones and lava flows of similar basaltic composition are found at the base of the volcano, although their age is not known precisely.

Photo by Carlos Pullinger, 1996 (Servicio Nacional de Estudios Territoriales, El Salvador).
See title for photo information.
Guazapa volcano is seen here from the west, 3 km north of the town of Guazapa. This eroded stratovolcano is of Pleistocene age and is one of the largest volcanoes of the interior valley of El Salvador. Deep canyons dissect the volcano, but relatively young pyroclastic cones and lava flows are found around its base.

Photo by Giuseppina Kysar, 1999 (Smithsonian Institution).
See title for photo information.
The massive Pleistocene Guazapa stratovolcano (left-center) is seen here in an aerial view from the SW with the Río Lempa behind it. The youngest flank vent of Guazapa is Cerro Macanze, which lies on the SE flank of the volcano, behind the two small volcanoes in the right-center part of the photo. The dark-colored unvegetated lava flow in the foreground was erupted in 1917 from the flank of San Salvador volcano.

Photo by Paul Kimberly, 1999 (Smithsonian Institution).
See title for photo information.
The western side of Lake Ilopango is seen from the southern rim of Ilopango caldera. The broad peak on the right-hand horizon is Guazapa, a Pleistocene volcano in the Interior Valley of El Salvador that has young pyroclastic cones at its base. The northern wall of Ilopango caldera rises about 400-500 m above the lake. Much of the caldera rim is covered with a thick blanket of deposits from the caldera-forming eruptions, but some lava domes are exposed in the caldera wall.

Photo by Bill Rose, 1978 (Michigan Technological University).
See title for photo information.
Volcán de Guazapa (right center) rises beyond Cerrón Grande reservoir (lower right) in this view from the NE. The low peak to the left of Guazapa is Cerro Tecomatepe. A solitary cloud lies below the summit of San Salvador volcano (upper left). The Santa Ana complex forms the broad massif at the upper right; sharp-topped Izalco volcano is visible at the left side of the massif, and peaks of the Sierra Apaneca near the Guatemalan border form the irregular ridge to the right of Santa Ana.

Photo by Lee Siebert, 2002 (Smithsonian Institution).
See title for photo information.

Smithsonian Sample Collections Database


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

Affiliated Sites