Tolbachik

Not all volcanoes on the Kamchatka Peninsula create and destroy summit domes. The current eruption at Tolbachik has been issuing long lava flows since November 2012 and even formed a small lava lake at the summit. This style of activity is rare in Kamchatka, but at Tolbachik, this is the form the most recent eruptions have taken. The eruption at Tolbachik is still going strong, so these dark lava flows will likely continue to be active for the weeks or months to come.

Image: From March 6, 2013 - NASA Earth Observatory