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Volcanic activity world-wide 29-30 July 2012: pyroclastic flows at Santiaguito, seismic activity at Tongariro, continuing explosions at Batu Tara & Sakurajima, updates for Fuego, Popocatéptel, Nevado del Ruiz, Santorini

Mon, 30 Jul 2012, 16:26
16:26 PM | BY: T
Batu Tara (Sunda Islands, Indonesia) continues to be active. Ash clouds to about 2 km altitude were obverved yesterday and today on satellite images.

In Guatemala, Santiaguito / Santa Maria (Guatemala) volcano has been producing some pyroclastic flows triggered by rock avalanches from the active lava flows yesterday morning.

Fuego volcano (Guatemala) produces frequent mild strombolian eruptions with up to 300 m high ash clouds. At least one of the lava flows is still active and about 200 m long in the direction of Taniluya canyon.

Nevado del Ruiz (Colombia): A period of increased tremor occurred overnight at Nevado Del Ruiz volcano (station OLLE). The tremor at the volcano has since subsided to low levels.

Popocatépetl (Mexico): Eruptive activity remains reduced at Popocatepetl, but the volcano continues to emit a significant amount of SO2, and volcanic tremor and lava glow are visible. In fact, Popo is known to be one of the top-performers of SO2 emission among all known volcanoes.

The number of earthquakes at Santorini, Greece has slightly picked up recently.

Tongariro (New Zealand): A lot of seismic activity appears on the seismograph visible at Tongariro. There are no new reports by Geonet, and the status remains at yellow (1 out of 4).

VAAC Tokyo reports continued explosions at Sakurajima volcano in Japan with ash clouds reaching 2-2.5 km altitude.
Previous news
Fri, 27 Jul 2012, 10:24
No particularly unusual volcanic activity is taking place at the moment. Mainly based on the latest Smithsonian / USGS activity report, webcams and other sources, the following is a brief summary: ... read all
Wed, 25 Jul 2012, 14:19
Volcanic activity worldwide in the past weeks has mostly featured the usual, semi-permanently active volcanoes. ... read all
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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