San Martin

sopka – Volcanic field, Mexico, Middle America-Caribbean Volcanic Regions

Kde

Mexico, Middle America-Caribbean Volcanic Regions

Typ (GVP)

Volcanic field

Nadmořská výška

1 660 m

Tektonické prostředí

Subduction zone / Continental crust (> 25 km)

Poslední známá erupce

1796

Poloha

18,562°, -95,199°

Volcán de San Martín, part of the Tuxtla Volcanic Field, is a broad alkaline shield volcano that rises above the Gulf of Mexico. The massive volcano, also known as San Martín Tuxtla, is elongated NW-SE and is capped by a 1-km-wide summit crater. The upper part of the volcano is covered with dense tropical rain forests. The summit and flanks contain more than 250 pyroclastic cones and maars. Well-preserved cinder cones are abundant between the summit and Laguna Catemaco on the SE flank. Holocene cones in this area produced ash deposits that buried stone pyramids. The two largest recorded eruptions took place in 1664 and 1793. The 1793 eruption occurred from two cinder cones in the summit crater and produced widespread ashfall and lava flows that extended 3.5 km down the NE flank.

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.