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Zufallsfotos
San Miguel Vulkan
Schichtvulkan 2130 m / 6,988 ft
El Salvador, 13.43°N / -88.27°W
Aktueller Status: normal / ruhend (1 von 5)
San Miguel Webcams / aktuelle Daten | Berichte
San Miguel Vulkan-B cher
Ausbrüche des San Miguel:
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
Typische Aktivität:
small to moderate phreatic and phreatomagmatic summit explosions
Letzte Erdbeben in der Nähe
Letzte Satellitenbilder

Sentinel hub | Landsat 8
 

San Miguel volcano news & activity updates

San Miguel volcano (El Salvador) activity update

Donnerstag Jan 02, 2014 12:09 | VON: T

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.
Authorities decided to order evacuation of additional 3,000 people from the cities of San Miguel, San Jorge, San Rafael Oriente, and Chinameca. However, it appears that a significant number of people decided to return to their homes inside the danger zones, because of the apparent (and possibly very dangerous) lack of new activity in the past few days.
Analyzes of ash from the 30 Dec eruption indicate that they consist of 80% juvenile material (i.e. from new magma), which supports the idea that a new magma batch has risen inside the volcano and could lead to new activity in the near future. MARN also mentions that the absence of crystals in the juvenile glass matrix of the ash indicates that the magma rose quickly, i.e. without having time to form crystals. That further adds to the need to stay on alert, because a sudden eruption might just happen again.
Vorherige Nachrichten
Eruption plume from today's explosion at San Miguel (photo: La Prensa Grafica)
Dienstag, Dez 31, 2013
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. ... [mehr]
Current seismic recording from San Miguel (VSM station, SNET)
Samstag, Apr 06, 2013
Volcanic earthquakes embedded in weak tremor remain frequent. [mehr]
Yesterday's seismic recording from San Miguel (VSM station, SNET)
Dienstag, Mär 19, 2013
The volcano has been relatively quiet recently. Only few volcanic quakes, weak tremor and (probably) rockfall signals show up now and then. [mehr]
Current seismic signal from San Miguel (VSM station, SNET)
Donnerstag, Mär 07, 2013
Seismic unrest (fluctuating, sometimes strong volcanic tremor and earthquakes) continue. Several hot spots are visible on the volcano's flanks, but most likely caused by fires. [mehr]
Current seismic signal from San Miguel (VSM station, SNET)
Dienstag, Feb 05, 2013
Activity has somewhat increased during the past 24 hours, including a pulse of stronger tremor and numerous small volcanic quakes. [mehr]

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