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San Martín ηφαίστειο

Shield volcano 1650 m / 5,413 ft
Mexico, 18.57°N / -95.17°W
Current status: normal or dormant (1 out of 5)

San Martín volcano (Volcan de San Martín Tuxtla) is a broad basaltic shield volcano that rises above the Gulf of Mexico, and is part of the Tuxtla volcanic field. It has a 1 km wide summit caldera containing 2 smaller scoria cones which formed during the violent 1793 summit eruption that produced wide-spread ash fall and lava flows traveling 3.5 km from the summit.
There are more than 250 flank cones dotted on the flanks of the volcano indicating frequent flank eruptions. The largest historic eruptions were in 1664 and 1793. At present, there is fumarolic activity in the summit caldera.

Διαδραστικός χάρτης
Typical eruption style: Effusive
San Martín ηφαίστειο εκρήξεις: 1932(?), 1797(?)-1805(?), 1796, 1793, 1664
Lastest nearby earthquakes:
ΏραMag. / ΒάθοςΑπόσταση/Τοποθεσία
Τετάρτη, 18 Μαΐου 2022 GMT (1 σεισμός)
18 Μαΐ 2022 16:04 (GMT -5) (18 Μαΐ 2022 21:04 GMT)
3.4

3 km
267 km (166 mi)
10.4 km νοτιοανατολικά από Tecamachalco, Μεξικό

Background

The massive volcano, also known as , is elongated in a NW-SE direction and is capped by a 1-km-wide summit crater. The upper part of the 1650-m-high volcano is covered with dense tropical rain forests. The summit and flanks of San Martín are dotted with more than 250 pyroclastic cones and maars. Well-preserved cinder cones are abundant between the summit of the volcano and Laguna Catemaco on the SE flank. Holocene cones in this area produced ash deposits that buried recently discovered stone pyramids.


See also: Sentinel hub | Landsat 8 | NASA FIRMS
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