Iceland's Sundhnukur Crater Erupts Again, No Threat to Residents

On July 16, 2025, Iceland experienced its 12th volcanic eruption in four years from the active Sundhnukur crater, with officials assuring the public that safety is maintained.

A volcanic system near Reykjavik erupted early Wednesday, July 16, 2025, marking the 12th significant event in just four years. The eruption released smoke into the atmosphere but emitted very little lava, presenting no threat to local communities or infrastructure, according to the Icelandic Red Cross's Secretary General, Gisli Olafsson.

The event commenced at 3:56 a.m. local time, following several seismic tremors. Located between Grindavik, a fishing village situated 25 miles southwest of Reykjavik, and the popular geothermal spa, Blue Lagoon, authorities had preemptively evacuated these areas. Whether the Blue Lagoon remained operational post-eruption was yet to be confirmed, with company representatives unavailable for comment.

The Icelandic Meteorological Office reported that the eruption fissure stretched approximately half a mile, with lava primarily flowing southeast, away from populated zones. No reports of damage or injuries surfaced following the event. However, as prevailing winds could carry ash clouds towards the vicinity of Iceland's main international airport, the Meteorological Office monitored the situation closely. Fortunately, by 6:30 a.m. local time, air traffic faced no interruptions, maintaining safety for travelers heading to and from Reykjavik.

Previously, Icelandic volcanic eruptions occurred every three to four years, but the frequency has escalated dramatically. The Svartsengi volcanic system, which encompasses the Sundhnukur crater, has witnessed an upsurge in activity, posing new challenges for residents and authorities alike.

Francesca Regalado, a dedicated reporter for Times, continues to keep her finger on the pulse of breaking news events.