Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Santa Ana
Santa Ana, El Salvador's highest volcano, is a massive, 2381-m-high stratovolcano whose summit is truncated by a series of four nested craters, seen here from the SW. A series of parasitic vents and cones have formed along a 20-km-long fissure system that extends from the low NNE flank to the San Marcelino and Cerro Chino cinder cones on the SE flank. Historical eruptions, largely consisting of small-to-moderate explosions from both summit and flank vents, have been recorded since the 16th century. Photo by Mike Carr, 1982 (Rutgers University).
Volcano Number:343020
Volcano Name:Santa Ana
Country:El Salvador
Volcano Type:Stratovolcano
Last Eruption:2005 CE
Elevation:2381m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:489
Pop. within 10km:21653
Pop. within 30km:1240131
Pop. within 100km:6486880
Latitude:13.853
Longitude:-89.63



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
343020 Santa Ana 10410 Confirmed Eruption 2 Historical Observations 1884/3/9 1884/3/10
343020 Santa Ana 10690 Confirmed Eruption 2 Historical Observations 1904/1/12 1904/1/26
343020 Santa Ana 10691 Uncertain Eruption 2 ? 1920
343020 Santa Ana 10764 Uncertain Eruption 2 1878
343020 Santa Ana 10765 Confirmed Eruption 2 Historical Observations 1879/2/1
343020 Santa Ana 10766 Confirmed Eruption 3 NW flank (Mala Cara) Historical Observations 1880
343020 Santa Ana 10767 Uncertain Eruption 1882
343020 Santa Ana 10768 Confirmed Eruption 3 Historical Observations 2005/6/16 2005/10/1
343020 Santa Ana 19891 Uncertain Eruption 1520
343020 Santa Ana 19892 Confirmed Eruption 3 Historical Observations 1521/12/31
343020 Santa Ana 19893 Confirmed Eruption 3 Historical Observations 1524/4/30
343020 Santa Ana 19894 Confirmed Eruption Historical Observations 1570
343020 Santa Ana 19895 Confirmed Eruption 3 Historical Observations 1576
343020 Santa Ana 19896 Uncertain Eruption 1621
343020 Santa Ana 19898 Confirmed Eruption 2 SE flank (San Marcelino) Historical Observations 1722/3/12
343020 Santa Ana 19899 Confirmed Eruption 2 ? Historical Observations 1734
343020 Santa Ana 19900 Confirmed Eruption 3 Historical Observations 1874
343020 Santa Ana 22142 Confirmed Eruption 2 Radiocarbon (corrected) 1954
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Emission ID SO2 Kilotons Start Date End Date
288 12 2005/10/01 2005/10/01


Data from the Earthchem Library
Title Author Release Date DOI Link
A reassessment of current volcanic emissions from the Central American arc with specific examples from Nicaragua Mather, T. 2015-05-15 10.1594/IEDA/100539 Details
The emissions of CO2 and other volatiles from the world’s subaerial volcanoes The emissions of CO2 and other volatiles from the world’s subaerial volcanoes Fischer, Tobias 2020-11-21 10.1594/IEDA/111445 Details
Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Location: Santa Ana (View Details at MaGa DB)
Description: The Santa Ana–Izalco–Coatepeque volcanic complex consists of the Coatepeque collapse caldera and the Santa Ana and Izalco volcanoes, as well as numerous cinder cones and explosion craters.Hot springs, gas bubbling, and intense fumarolic emissions are observed along the shoreline of this crater lake. The crater and upper fl anks of the Santa Ana volcano show thin phreatomagmatic tephra deposits that act as impermeable barriers to vertical gas migration.
Hazard Description: The Santa Ana–Izalco–Coatepeque volcanic complex is one of volcanoes investigated because about one million inhabitants reside within a 30 km radius of it.
Type: soil_diffuse_emission
Region: Santa Ana, El Salvador
Country: El Salvador
Volcanic Complex: Santa Ana
Gas Flux Data:
Measurement Name Detail Date Specie Flux Std. Dev. Unit of Measure
Santa Ana_032001 Detail 2001/03/01 CO2 600 0 Mg/d
Santa Ana_01012002 Detail 2002/01/01 CO2 7 0 Mg/d

Location: Santa Ana Crater lake (View Details at MaGa DB)
Description: The Santa Ana Volcano or Ilamatepec (Spanish: volcán de Santa Ana) is a large stratovolcano located in the Santa Ana department of El Salvador. At 2,381 metres above sea level, it is the highest volcano in the country.The summit of Santa Ana features four nested calderas and volcanic craters, with the innermost containing a small crater lake.
Hazard Description: not reported
Type: lake
Region: Santa Ana Department, El Salvador
Country: El Salvador
Volcanic Complex: Santa Ana