“We actually went to color code red this afternoon because of numerous lightning detections and increased seismic signals,” Jeffrey Freymueller of the Geophysical Institute at the University of Alaska, Fairbanks told to media. The eruption lasted for about 50 minutes. The volcano sits under the flight path of many flights from Asia to North America. Volcanic ash is abrasive, melts at jet engine temperatures, and can cause engine failure. In 2010 the eruption of the Eyjafjallajokull volcano in Iceland caused the cancellation of flights around Europe for six days. Bogoslof volcano remains in an unpredictable condition, additional explosions could occur at any time. Previous volcanic activity earlier in 2017 “significantly changed the shape and coastline of the island”. Previous eruption events have lasted weeks to months.