One of the largest and most active volcanoes on the Alaska Peninsula near the settlements of Perryville and Chignik has grown increasingly restless since the turning of the new year, sending up small ash plumes and experiencing increased seismic tremors. The Alaska Volcano Observatory on Tuesday upgraded Mount Veniaminof Volcano’s level of concern to yellow for activity considered higher than the normal background. The level of concern is up from green, indicating normal activity, but isn’t yet to the orange level when an eruption is expected to occur or is occurring. Veniaminof is about 300 miles southwest of the Kodiak...