https://www.livescience.com/planet-eart ... c-eruption
The ground below the Icelandic fishing town of Grindavík is so fissured and unstable following the volcanic eruption earlier this month that it could collapse, officials have warned.
The ground beneath Grindavík, a small fishing town on Iceland's Reykjanes Peninsula, is so fissured following a volcanic eruption on Jan. 14 that it could collapse, the Icelandic Met Office (IMO) has warned.
This "crack collapse" may occur in places where the ground is already unstable, according to a translated IMO statement updated on Thursday (Jan. 25).
Fissures that opened to the north of Grindavík sent lava flows coursing through the town during the eruption, which has since ended. The overall risk assessment for Grindavík was subsequently lowered from great (red) to considerable (orange) on a hazard map, but new dangers now loom over — or in this case under — the town.