MT. KLYUCHEVSKOY VOLCANO, Kamchatka, Russia 56o11' N, 160o47' E Sunday, September 19, 1993, 19:30 KDT On September 11, a gas and ash plume was as high as 200 meters above the crater, extending to the northeast for about 1 km. Constant volcanic tremor was registered under the volcano but other seismicity is at background levels. Weak fumarolic activity was noticed in the crater on September 14.