Eruption in Iceland, what we know

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Last night started avolcanic eruption in Iceland and more precisely north of Grindavík, on the Reykjanes peninsula. The eruption, which began at 22:17 local time (23:17 Italian time), was preceded by an earthquake swarm that began at 21:00 that evening. ON report it is the Icelandic Meteorological ServiceIcelandic Met Office (Imo), which in its latest update warned that the intensityexplosion gradually decreases.

Where is the rash

The eruption is about 3 kilometers northeast of the town of Grindavík. According to experts, it is located on what geologists call “I Say Volcanic”, that is, a rocky body consisting of an intrusion of igneous origin (igneous rock), generally longitudinal in shape in a fissure that cuts adjacent layers of sedimentary rocks, formed in November. The eruption fissure is approx 4 kilometers, with the northern end east of Stóra-Skógfell and the southern end east of Sundhnúk. The distance from the southern end to the border of Grindavík is almost 3 kilometers. “It was assumed that escape velocity lava within the first two hours, eruption pits on the scale of hundreds of cubic meters per second, with larger lava fountains at the northern end of the fissures.they explain from Imo. “Lava is spreading laterally from both sides of the newly opened fissures. From real-time GPS measurements, significant ground deformation accompanied the opening of eruptive fissures.”

Eruption intensity

Since last night, web cameras broadcasts of the eruption continuously showed images of fountains of red lava coming out of the ground, accompanied by huge masses of smoke. As of midnight today, however, the level seismicity it appears to have shrunk, and early estimates of the extension of the volcanic fissure suggest that the eruption is decreasing. intensity. “The intensity of the volcanic eruption that started about four hours ago is decreasing,” experts warn. “This is evident from seismic and GPS measurements. The fact that the activity is already decreasing is not an indication of how long the eruption will last, but rather that the eruption is reaching state of equilibrium. This development has been observed at the beginning of all the eruptions on the Reykjanes peninsula that have occurred in recent years.”

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