Two fissures are still erupting just north of Grindavík, the larger one is at Hagafell and the smaller one is right at the town’s border. Lava flows from both fissures. The smaller fissure, about 100 meters long, which opened around 12 noon today, is just about 200 meters from the Efrahópi neighborhood in Grindavík. Lava flows from it into the city limits and causes considerable damage there.
Updated January 14 at 18:45
The new eruption near Hagafell-Grindavík has maintained the same strength for the past hour or so. Seismic measurements show that at the beginning of the unrest this morning (~2:30 am), the magma filled dike intrusion initially moved from the SE edge of Stóra-Skógfell and then continued southwest to the southern end of Grindavík. At 5:30 am seismicity had reached the northern end of Grindavík and both seismicity and deformation measurements indicate the dike has since propagated beneath Grindavík town. A new eruptive fissure opened at 12:10 this afternoon, just north of the town. Lava flows extruded from this fissure have now entered the town. Due to the dike propagation, existing faults and fractures were reactivated and likely new fractures formed within Grindavík.
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