The volcano subsides
Eleven earthquakes, five or more, have now become Bárðarbunga itself, which is the largest volcano and is completely covered with ice. Had not become such a big earthquake in Vatnajökull since 1996 the largest in this cycle was on Tuesday August 26 and was a size 5.7. The article says that the earthquakes that have occurred in the volcano itself lies close to the ring that is said to mark the faults that occurred when Bárðarbunguaskjan formed long ago. Earthquakes appears to extend down to 10 km depth. Believed that these earthquakes caused by subsidence in Bárðarbunga Askja because the pressure drop when it receives a dynamic expansion aside.
Evidence of excessive shallow magma under the volcano
The scientists noted that within this circle is visible, however, very few earthquakes. They say that you would think that on the bottom of the carton would also create a considerable number of earthquakes within the rock itself eventually. There was, however, a few earthquakes.
This indicates that the material beneath is very hot, molten or near the melting points. There is a significant potential for very large magma chamber is shallow the bottom of the box in Bárðarbunga. Very large öskugos could
The article says that the eruption directly from such a magma chamber, where the acidic magma has accumulated for a long time, it could become very large and produce a lot of ash and pumice, as for example was done in the eruption of a volcano caldera in 1875. no specific evidence, however, for this to be coming in Bárðarbunga, although seismicity is high on the box edges, but it is appropriate to have this feature in mind.
Dicen que en el crater del Bardarbunga, el magma esta practicamente pegado a la superficie del crater, y que la baja cantidad de terremotos se debe a que la caldera esta muy caliente, practicamente cerca del punto de fusion. Y que por ello, al ser mas flexible no produce tantos seismos.
Y dicen que el magma esta muy acidificado y que en caso de entrar en erupcion, provocaria una burrada de ceniza y piedra pomez.
Por otro lado proteccion civil esta cerrando numerosas carreteras al norte de Vatnajökull ante el temor de que una erupcion subglaciar cause graves inundaciones.