Do this automatically from now on
Donnerstag, Mai 16, 2013
Seismic (tremor, volcanic-tectonic quakes) and external activity (steaming, occasional weak ash venting) have calmed down a bit over the past days.
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Montag, Mai 13, 2013
A small seismic swarm, likely caused by the rise of another new small batch of magma, occurred this morning at the volcano. The hyopcenters were located 4 km SW of the Arenas crater at depths between 4-6 km, INGEOMINAS reported.
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Nevado del Ruiz VulkanSchichtvulkan 5321 m / 17,457 ft
Kolumbien, 4.9°N / -75.32°W Aktueller Status: Schwache Aktivität oder Ausbruchswarnung (3 von 5) Nevado del Ruiz Webcams / aktuelle Daten
Letztes Update: 16 Mai 2013
Typische Aktivität: Explosiv Ausbrüche des Nevado del Ruiz: 1994, 1985-91, 1984-85, 1916, 1845, 1833?, 1831, 1829, 1828, 1826(?), 1805, 1623, 1595, 1570, 1541(?) Nevado del Ruiz Vulkan Fotos Letzte Erdbeben in der Nähe:
Beschreibung:Nevado del Ruiz covers more 200 sq km and it is composed by 3 major andesitic and dacitic edificed of lavas and tuffs. The present-day cone is composed by lava domes built within the summit caldera of the older Ruiz volcano. Its summit contains the 1-km-wide and 240-m-deep Arenas crater.The prominent La Olleta flank cone on the SW flank was probably built in historic time. Nevado del Ruiz has repeatedly produced large mud flows (lahars), triggered by melting of the summit glacier during eruptions. Deposits of these mud flows are found on its broad flanks and these events have been known since the 16th century. Nevado del Ruiz Fotos:
1985 Armero mud flow disaster
Nevado del Ruiz erupted on 13 November 1985. Although the eruption was small, it caused a large mud flow which swept through the town of Armero almost 40 km away from the summit where more than 23,000 people were killed. The event caused a heated debate because government officials chose to ignore volcanologists' warnings of the imminent danger of the advancing lahar. The eruption itself had been preceded by increased fumarolic, phreatic and seismic activity for a year. The tragedy was South America's worst and globally the 4th worst volcanic known disaster. The event was even more tragic, because it the same events had already occurred at least 2 times during earlier eruptions. ...mehr |
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