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Volcanic activity world-wide 25 June: El Hierro, Galeras, Nevado del Ruiz, Popocatéptl

di, 26 jun 2012, 06:27
06:27 AM | DOOR: T
A new eruption might be under way at El Hierro (Canary Islands, Spain). Following several weaker swarms in the past weeks, a strong swarm started late on 24 June and increased dramatically to more than 200 earthquakes of M1.5 or more, including volcanic tremor. The quakes locations indicated that magma was moving at depth from N towards the S in a similar way as at the start of the 2011 submarine eruption. Therefore, the possibility of renewed eruptive activity is real.
The hypocenter of the seismicity is still relatively deep (around 20 km) though since the volcano has already generated a channel for magma to ascend during the previous eruption in 2011-12, the timeline for rise and eruption of any "new" magma may be much shorter.

Apparently not to be outdone by El Hierro, Galeras (Colombia) is experiencing a more energetic earthquake swarm of it’s own (station ANGV).

While tremor is much reduced at nearby Nevado Del Ruiz (Colombia), volcanic earthquakes continue (station OLLE).

Small volcano-tectonic earthquakes are rattling Popocatepetl volcano (Mexico) as well.
Koppelingen / Bronnen:
  • Volcano activity of June 25, 2012 – Canary Islands, Colombia and Mexico (earthquake-report)

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