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San Miguel Vulkan

Aktualisiert: 1. Okt. 2022 16:38 GMT -
Schichtvulkan 2130 m / 6,988 ft
El Salvador, 13.43°N / -88.27°W
Aktueller Status: normal / ruhend (1 von 5)
Last update: 9 Dez 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)

San Miguel volcano (also known locally as Chaparrastique) in eastern El Salvador is a symmetrical stratovolcano and one of the most active volcanoes of the country. It rises majestically from near sea level to 2130 m elevation and forms a prominent land mark.
The volcano's summit lacks vegetation due to frequent eruptions, but its flanks are largely covered with coffee plantations.
San Miguel has a broad, deep crater complex, which has frequently changed morphology during historic eruptions recorded since the early 16th century.

Interaktive Karte anzeigen
Typische Aktivität: small to moderate phreatic and phreatomagmatic summit explosions
Ausbrüche des San Miguel: 2015, 2014, 2013, 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

Letzte Erdbeben in der Nähe

UhrzeitMag. / TiefeEntfernung/Ort
Samstag, 1. Oktober 2022 GMT (1 Beben)
1. Okt. 2022 02:06 (GMT -6) (1. Okt. 2022 08:06 GMT)
0.8

31 km
199 km (124 mi)
5 Km Al Noreste De Ocotal, Nicaragua
Dienstag, 27. September 2022 GMT (1 Beben)
27. Sep. 2022 06:43 (GMT -6) (27. Sep. 2022 12:43 GMT)
1.7

188 km
29 km (18 mi)
24 km nördlich von Usulutan, El Salvador

Beschreibung

Radial fissures on the flanks of the basaltic-andesitic San Miguel volcano have fed a series of historical lava flows, including several erupted during the 17th-19th centuries that reached beyond the base of the volcano on the north, NE, and SE sides.
The SE-flank lava flows are the largest and form broad, sparsely vegetated lava fields crossed by highways and a railroad skirting the base of the volcano.
The location of flank vents has migrated higher on the edifice during historical time, and the most recent activity has consisted of minor ash eruptions from the summit crater.
(Source: GVP)

San Miguel Fotos



2002-2006 unrest and seismic activity
Following the small eruption in January 2002, San Miguel volcano remained restless for over 4 years, with periods of increased seismic activity, landslides inside the crater, increased fumarole activity, and lahars triggered by heavy rains. The volcano was on alert several times, but no eruption occurred in this period. ...mehr

2002 eruption
On 16 January, gas and steam emissions with some ash were observed at San Miguel, reaching a few 100 meters above the summit crater

2000-2001 lahars
A large lahar occurred on 26 August 2000 and damaged houses and a highway north of the volcano. On 6 September 2001, another lahar damaged a highway.

1997 eruption
A small eruption occurred on 31 December 1997 and produced minor ashfall.

1995 eruption
A small eruption occurred on 23 March 1995. ...mehr

1976-77 eruption
After 6 years of dormancy, San Miguel started erupting on 2 December 1976. The eruption built a new spatter cone in the central crater and continued until 12 December. It paused for 56 days and resumed on 28 February the following year and ended on 1 March.

1970 eruption
An eruption of San Miguel volcano started on 30 March 1970 and lasted until 4 April. It consisted of small ash emissions, sometimes accompanied by loud explosions.
The first ash eruption could be heard 4 km away and produced an ash plume rising 400 m above the crater. Light ashfall occurred at up to 10 km distance.

See also: Sentinel hub | Landsat 8 | NASA FIRMS
Mi, 10. Feb 2021, 06:00

San Miguel volcano (El Salvador) - Smithsonian / USGS Weekly Volcanic Activity Report for 10 February-16 February 2021 (Continuing Activity)

SNET stated that San Miguel's seismic network recorded long-lasting and continuous periods of volcanic tremor that began on 7 February and continued through 14 February. Discrete earthquakes from minor rock fracturing were also detected. RSAM values fluctuated between 25 and 75 units, below normal values around 150 units. ... Read all
Mi, 25. Mär 2020, 06:00

San Miguel volcano (El Salvador) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 March-31 March 2020 (Continuing Activity)

SNET stated that during 30-31 March the seismic network at San Miguel recorded a period of increased seismicity characterized by continuous, low-frequency, tremor-type signals. RSAM values were between 90 and 116 units, lower than the normal values of 150, at a seismic station located on the upper N flank. ... Read all
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