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Volcanic activity world-wide 28 June 2012: Eruption warning for El Hierro, updates for Colombia and MexicoThursday Jun 28, 2012 18:55 PM | BY: T
 Live data viewed with our webcams.volcanodiscovery.com tool PEVOLCA in a press release admits that significant inflation has been observed since the onset of the seismic swarm, confirming that the cause of it is new magma. Although it is not certain at all that it will, an eruption should be expected to occur any time now. The most likely area is probably the El Julan coast or further south in the Las Calmas Sea. We have updated our interactive webcam viewer to include some of the publicly available seismic and deformation data: webcams.volcanodiscovery.com/ElHierro Galeras (Colombia): Although seismic activity has descreased, tremor and small earthquakes continue to occur. Some of the seismic signals (such as the one early on 28 June) look like screw-shaped tornillos, which in the past have often preceded eruptions. Nevado del Ruiz (Colombia): tremor at relatively low levels, related to gas and steam and sometimes ash venting Popocatépetl (Mexico): Small volcano-tectonic earthquakes, spasmodic and harmonic tremor, along with small gas and ash emissions, and occasional explosions continue. A large SO2 plume is produced by the volcano as well. Previous news
Wednesday, Jun 27, 2012
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. ...
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Tuesday, Jun 26, 2012
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. ...
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Wednesday, Jun 20, 2012
The new Smithsonian / USGS Weekly Volcanic Activity Report is summarized as follows: ...
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Monday, Jun 18, 2012
New discoveries of petrified trees at the area of Agia Paraskevi show that there has been a dense forest 17 Million years ago on the western part of the island of Lesbos. New excavations under the palaeontologist Prof. Nikos Sourou show about 45 species of trees. Some even in the original position with their roots. In future it is planned to include the new items in the geopark of Lesbos island. The fossils are covered by many meters of pyroclastic material of huge volcanic eruptions that took place in the time around 15-23 Million years. Some of the volcanoes that caused this wonder of nature can be found even today after millions of years of erosion (caldera of Agra, Lepetimnos volcano and other lava domes). ...
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