This map, prepared by the Iceland Met Office, shows the approximate location of the dike, as of Nov. 16. Shown in red, the dike is approximately 9.5 miles (15 kilometers) long and is closest to the surface near Sundhnúkur Craters, at about one-third a mile (500 meters) deep. The area of ground subsidence is marked on either side by lines of triangles. Note how close the magma body is to critical infrastructure, such as the Svartsengi Power Station, and the popular Blue Lagoon geothermal spa. Credit: Icelandic Meteorological Office, public domain, annotated by Melissa Scruggs

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This map, prepared by the Iceland Met Office, shows the approximate location of the dike, as of Nov. 16. Shown in red, the dike is approximately 9.5 miles (15 kilometers) long and is closest to the surface near Sundhnúkur Craters, at about one-third a mile (500 meters) deep. The area of ground subsidence is marked on either side by lines of triangles. Note how close the magma body is to critical infrastructure, such as the Svartsengi Power Station, and the popular Blue Lagoon geothermal spa. Credit: Icelandic Meteorological Office, public domain, annotated by Melissa Scruggs

This map, prepared by the Iceland Met Office, shows the approximate location of the dike, as of Nov. 16. Shown in red, the dike is approximately 9.5 miles (15 kilometers) long and is closest to the surface near Sundhnúkur Craters, at about one-third a mile (500 meters) deep. The area of ground subsidence is marked on either side by lines of triangles. Note how close the magma body is to critical infrastructure, such as the Svartsengi Power Station, and the popular Blue Lagoon geothermal spa. Credit: Icelandic Meteorological Office, public domain, annotated by Melissa Scruggs

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