Description: From McGimsey and others (2004): "On July 30, 1999, AVO received a report from an Alaska Department of Fish and Game (ADF&G) biologist working at a fish weir on the Chignik River that the West Fork was unusually turbid. An ADF&G pilot also reported that an abnormal amount of water was discharging from the termini of the glaciers feeding this river, which originate on the east and northeast flanks of Veniaminof Volcano. The biologist and pilot -- both experienced in the area -- had never before seen this level of discharge and extreme turbidity in the river and were concerned about potential adverse effects on fish. They reported that no unusual steaming or other activity was visible form their camp. There were no further reports. AVO had no seismic instruments on this volcano in 1999."