LONDON — Thousands of small intense earthquakes are rocking Iceland amid concerns that one of the country’s volcanoes may be close to erupting.
Iceland has raised its aviation alert level for the risk of a possible volcanic eruption to orange — the second-most-severe level. The alert is worrisome because of the chaos that followed the April 2010 eruption of Eyjafjallajokul, when more than 100,000 flights were canceled because volcanic ash floating in the atmosphere is considered an aviation safety hazard.
Some 3,000 earthquakes have taken place since Saturday in Bardarbunga — a subglacial stratovolcano under Iceland’s largest glacier. Iceland’s Meteorological Office said no earthquakes above magnitude 3 have been recorded in the past 24 hours.
Seismologists said Tuesday that magma is moving, but it is traveling horizontally.
![[prison 19] Caption: This is Cellhouse 1, Pod A, from ground level inside the Sterling Correctional Facility which is located outside of Sterling, Colorado Thursday afternoon. Photographer: LEW SHERMAN Title: FREELANCE Credit: SPECIAL TO THE POST City: Sterling State: CO Country: USA Date: 19990617 ObjectName: prison 19 Keyword: PUBDATE____1999_06_22](/wp-content/uploads/2016/04/20151207__denverpostp1.jpg?w=538 "20151207__denverpost~p1.jpg")
