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The volcanic fissure on Iceland’s Reykjanes peninsula has revived thanks to voluminous and powerful currents. A volcano erupted on Iceland’s Reykjanes Peninsula in late May 2024, and satellite
The volcanic fissure on Iceland’s Reykjanes peninsula has revived thanks to voluminous and powerful currents. A volcano erupted on Iceland’s Reykjanes Peninsula in late May 2024, and satellite images from early June show activity waning. The eruption occurred following the accumulation of significant amounts of magma and affected nearby communities and infrastructure.
At the end of May 2024, a volcanic fissure reawakened on Iceland’s Reykjanes peninsula. This eruption, the last in a series of eruptions that began in December 2023, was notable for its violent onset. Of all recent eruptions near Grindavik, the highest lava flow rate occurred in the first hours of the eruption.
The Landsat 8 Operational Terrain Imager (OLI) captured this image of the current eruption on June 2, 2024. The natural-coloured scene is overlaid with an infrared signal to help distinguish the heat signature of the lava. By now, volcanic activity along the fissure, which was up to 3.4 kilometers (2.1 mi) long, had diminished after the initial eruption. According to the Icelandic Meteorological Office (IMO), the most active areas emitting the hottest heat signals (light green) are located near one of the craters that erupted in March 2024. Most of the black area in the image consists of cooled lava, but note that there are also dark shadows from clouds.
The IMO said models showed 18 million cubic meters of magma had accumulated beneath the fissure since the eruption in March. This was the largest volume of magma to accumulate in the reservoir since the leak first formed in the fall of 2023. The lull in surface activity between March and May was the longest period since late 2023, when magma accumulated without erupting.
When the lava rose to the surface at 12:46 local time on May 29, it erupted at a rate of about 1,500 cubic meters per second for several hours. In contrast, lava erupted at a rate of 1,100-1,200 cubic meters per second in the first hours of the March eruption, and 600 cubic meters per second at the beginning of the February eruption.
Currents once again covered roads and threatened the town of Grindavik, which remained mostly empty after the evacuation in late 2023. Man-made defensive walls along the northwestern part of the city diverted the lava away from buildings. The flows also led to renewed evacuations at the Blue Lagoon, a geothermal hot spring a few kilometers north of Grindavik. When it reopened on June 2, visitors could see molten lava erupting in the distance.
Like previous bursts of activity, this boom did not disrupt air travel; Violent eruptions like this tend to produce minimal ash. However, the IMO said that long daylight hours increase the possibility of volcanic fog or fashion, and the fog has been seen in several parts of the country. It consists mainly of very small sulfate particles (SO4) is formed as a result of the mixing of sulfur dioxide and other volcanic pollutants with oxygen and water vapor under the influence of sunlight.
Source: Port Altele
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