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Tacana volcan

Mise à jour: 5 déc.. 2022 18:19 GMT -
stratovolcan 4060 m / 13,320 ft
Mexico / Guatemala, 15.13°N / -92.11°W
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 29 févr. 2020

Tacaná volcano on the Mexican-Guatemalan border is a symmetrical stratovolcano rising 1800 m above its base and forms the NW end of the Central American Volcanic Belt.
Tacana consists of overlapping volcanic edifices, reflecting a migration of vents from the NE to the SW over time. The youngest vent is the San Antonio lava dome in a crater on the upper SW flank, which was the site of most recent activity.
Historic eruptions of Tacaná were small phreatic explosions in 1855, 1878, 1949–1950 and 1986, from both Tacaná and San Antonio. The eruption in 1950 was the largest and produced pyroclastic flows.
Active fumaroles are found at 3600 m altitude and hot springs in various locations at the base of the volcano.

Montrer carte interactive
Style éruptif tipique: effusif
Eruptions du volcan Tacana: 1986, 1949-50, 1878, 1855

Derniers séismes proches

HeureMag. / ProfondeurDistance/Lieu
dimanche, 4 décembre 2022 GMT (1 séisme)
4 déc. 2022 15:37 (GMT -6) (4 déc.. 2022 21:37 GMT)
3.2

102 km
33 km (21 mi)
San Marcos, 23 km au nord-ouest de Coatepec, Quetzaltenango, Guatemala
lundi, 28 novembre 2022 GMT (1 séisme)
28 nov. 2022 07:16 (GMT -6) (28 nov.. 2022 13:16 GMT)
3.3

156 km
33 km (21 mi)
14 km au nord-ouest de La Union, Municipio de San Marcos, Guatemala
mardi, 22 novembre 2022 GMT (1 séisme)
22 nov. 2022 10:01 (GMT -6) (22 nov.. 2022 16:01 GMT)
3.5

205 km
37 km (23 mi)
33 km au sud-ouest de Jacaltenango, Departamento de Huehuetenango, Guatemala

Introduction

Tacaná contains a complex elongated summit area with 3 large calderas breached to the south, occupied by a series of lava domes intruded along a NE-SW trend. Viscous lava flow complexes are found on the north and south flanks, and lobate lahar deposits fill many valleys.
Radial drainages on the Guatemalan side are deflected by surrounding mountains into the Pacific coastal plain on the SW side of the volcano.

Tacana Photos



1986 eruption
Following months of increased seismic activity, a seismic swarm with quakes every minute started on 7 May, and was followed by a small phreatic explosion the next day. The vent was on the upper NW flank at an elevation of 3,800 m. It ejected a small amount of fine ash and partially destroying vegetation in an area 200 x 100 m, but otherwise caused no damage. New fumaroles were later found above 8 May crater. ...plus

See also: Sentinel hub | Landsat 8 | NASA FIRMS
Actualités
jeu., 3 juil. 2014, 15:50

Tacana volcano (Mexico / Guatemala): shallow earthquakes

Recent earthquakes near Tacaná volcano
A number of shallow earthquakes has occurred recently under the volcano. The largest was a magnitude 4.0 event at 5 km depth under the eastern flank. No reports of unusual activity at the volcano are available. ... Read all
Actualités
jeu., 3 juil. 2014, 15:50

Tacana volcano (Mexico / Guatemala): shallow earthquakes

Recent earthquakes near Tacaná volcano
A number of shallow earthquakes has occurred recently under the volcano. The largest was a magnitude 4.0 event at 5 km depth under the eastern flank. No reports of unusual activity at the volcano are available. ... Read all
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