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San Miguel volcano
stratovolcano 2130 m / 6,988 ft
El Salvador, 13.43°N / -88.27°W

San Miguel webcams / live data
San Miguel volcano eruptions:
2002, 1997, 1995, 1985-86, 1976-77, 1970, 1967, 1966 (Jul), 1966 (Feb), 1964, 1954, 1939, 1936(?), 1931, 1930, 1929, 1919-20, 1890-91, 1884, 1882, 1867-68, 1862, 1857, 1855, 1854(?), 1844-48, 1819, 1811(?), 1798(?), 1787, 1769, 1762, 1699, 1510 ± 5 years
Typical eruption style:
small to moderate phreatic and phreatomagmatic summit explosions
Last earthquakes nearby

San Miguel volcano news & activity updates

Monday, Mar 10, 2014
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
NO significant changes in activity have been noted. Seismic activity remains elevated, but at stable levels lower than during the second half of February.
Sunday, Mar 02, 2014
Tremor intensity at San Miguel volcano (MARN)
Tremor intensity at San Miguel volcano (MARN)
Location of recent earthquakes at San Miguel (MARN)
Location of recent earthquakes at San Miguel (MARN)
Seismic and degassing activity at the volcano decreased during the past days at bit, but remain elevated. The gas plume reached 100 m above the crater and drifted S-SW yesterday. ...more
Friday, Feb 21, 2014
Tremor intensity at San Miguel volcano (MARN)
Tremor intensity at San Miguel volcano (MARN)
Current seismic signal at San Miguel volcano (VSM station, MARN)
Current seismic signal at San Miguel volcano (VSM station, MARN)
The situation has remained essentially unchanged and the volcano has (not yet) erupted again. Seismic activity remains high and continues to increase overall, while surface activity consists of pulsating gas emissions reaching a height of 200 m.
Sunday, Feb 16, 2014
Tremor intensity at San Miguel volcano (MARN)
Tremor intensity at San Miguel volcano (MARN)
Location of recent earthquakes at San Miguel (MARN)
Location of recent earthquakes at San Miguel (MARN)
Warning signs of a possible new eruption of the volcano in the near future are becoming increasingly alarming. Accompanied by an ongoing earthquake swarm, tremor (as an indicator of internal pressure) continues to climb. Pulsating gas emissions reaching 50-400 m height above the crater have been seen recently. ...more [read all]
Thursday, Feb 13, 2014
Sequence of the small explosion at San Miguel yesterday (MARN)
Sequence of the small explosion at San Miguel yesterday (MARN)
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
A small ash explosion occurred yesterday afternoon at the volcano, at 16:44 (local time). It only lasted about 10 minutes and produced a small ash plume rising approx. 500 m. It is the first eruptive activity since the larger explosion on 29 Dec past year, and is likely only a precursor of more violent activity to come. ...more [read all]
Monday, Feb 03, 2014
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
Tremor amplitude at San Miguel volcano over the past weeks (MARN)
The volcano has not erupted again, but shows increased signs of unrest. Since late January, the volcano's seismic activity has been rising significantly. MARN detected a swarms of earthquakes at very shallow 1 km depth beneath the SW flank, while a smaller number of quakes occured at approx. 6 km depth beneath the summit of the volcano. ...more
Monday, Jan 13, 2014
Current seismic signal at San Miguel volcano (VSM station, MARN)
Current seismic signal at San Miguel volcano (VSM station, MARN)
No significant changes have occurred, but the authorities warn that another eruption in the near to medium-term future cannot be ruled out. Seismic activity with the presence of volcanic tremor remains at elevated, fluctuating levels. A degassing, SO2-rich plume rises about 150 meters above the crater.
Wednesday, Jan 08, 2014
Chaparrastique (the local name of the volcano) is still restless. SNET reports seismicity at (low) levels similar to before and after the eruption on 30 Dec, and a degassing plume of 100 m height, with a decreasing tendency. However, new eruptions with little or no warning could occur and authorities ask people not to approach the crater.
Thursday, Jan 02, 2014
Gas plume from San Miguel seen from the ISS on 30 Dec (Image: Rick Mastracchio)
Gas plume from San Miguel seen from the ISS on 30 Dec (Image: Rick Mastracchio)
No new explosions have occurred at the volcano of Chaparrastique (San Miguel), but elevated degassing (SO2 flux estimated at about 2800 tons / day) suggests that new magma is still arriving inside the volcano and could lead to new eruptions. ...more [read all]
Tuesday, Dec 31, 2013
Eruption plume from today's explosion at San Miguel (photo: La Prensa Grafica)
Eruption plume from today's explosion at San Miguel (photo: La Prensa Grafica)
Ash fall in San Jorge (La Prensa Grafica)
Ash fall in San Jorge (La Prensa Grafica)
The new eruption that occurred at the volcano Sunday (29 Dec) morning at 10:50 am local time has so far been an isolated single explosion of vulcanian type (accumulated pressure ejecting the plug in the conduit). Current seismic activity is low, but more activity could follow. ...more [read all]

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