Y de la version de la wikipedia en ingles (ya actualizado).
2011 eruption
Harmonic tremor was recorded twice around Grímsvötn on 2 and 3 October 2010, potentially indicating an impending eruption.[5] At the same time, sudden inflation was measured by GPS in the volcano, indicating magma movement under the mountain. On 1 November 2010 meltwater from the Vatnajökull glacier was flowing into the lake, suggesting that an eruption of the underlying volcano might be imminent. On 21 May 2011 at 1925 UTC, an eruption began, with 12 km (7.5 mi) high plumes accompanied by multiple earthquakes.[6][7][8] The ash cloud from the eruption rose to 20km/12 miles, and is so far 10 times larger than the 2004 eruption, and the strongest in Grímsvötn for 100 years.[9]
Que viene a decir mas o menos lo que ya sabemos del seguimiento de su compañero: La erupcion viene precedida de desplazamientos verticales (medidos con GPS), que los tremores lo indicaban y tal y cual. Destacar la ultima frase, donde dice que esta erupcion es 10 veces mas potente que la de 2004 y la mas fuerte de este volcan en 100 años....
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