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Volcanic activity world-wide 24-25 July: updates for Batu Tara, El Hierro, Etna, Merapi, Popocatépetl, Semeru, Sakurajima, Tungurahua

Wed, 25 Jul 2012, 14:19
14:19 PM | BY: T
Volcanic activity worldwide in the past weeks has mostly featured the usual, semi-permanently active volcanoes.

Batu Tara (Sunda Islands, Indonesia): occasional ash eruptions reaching about 2 km altitude
El Hierro volcano: slightly increased number of quakes following calm since the intense swarm in late June-early July
Etna (Italy): strombolian activity in Bocca Nuova continues
Merapi (Central Java, Indonesia): slowly growing lava dome in summit
Popocatépetl (Mexico): strong degassing and occasional ash emissions
Semeru (East Java, Indonesia): growing lava dome, ash venting observed during our latest expedition
Sakurajima (Kyushu, Japan): frequent and strong explosions
Semeru (East Java, Indonesia): growing lava dome, ash venting observed during our latest expedition
Tungurahua (Ecuador): small ash explosions
Previous news
Thu, 28 Jun 2012, 16:55
Live data viewed with our webcams.volcanodiscovery.com tool
The intense seismic swarm at El Hierro volcano continues with more than 100 quakes > M1.5 so far today. The quakes are concentrated underneath the El Julan coast, and some of the most recent quakes today have been at significantly shallower levels, 15-17 km, and indicate that magma now has started to rise. ... read all
Wed, 27 Jun 2012, 09:11
Location and depth map of the quakes beneath El Hierro during the past 36 hours. The red bullets ion the Las Calmas sea only started in the June 26 afternoon.
The most interesting volcano-related event at the moment is certainly the seismic crisis on El Hierro where the high-intensity earthquake swarm accompanied by tremor episodes continues. The quakes, still at "safe" 20 km depth, have now migrated to the El Julan coast where magma could be accumulating. ... read all
Tue, 26 Jun 2012, 06:27
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. ... read all
 

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