AVO received no pilot reports of eruptions. The lava flows on the northwest and southwest flanks that are extruding from the two vents 200 m below the crater rim have now moved down to 2800 m asl. Phreatic explosions are occurring at the contact of the northwest lava flow and the glacier. Lava fountains were observed in the central craters reaching a height of 300-500 m. Volcanic tremor is continuous with a maximum amplitude of 6.1 microns and is recorded at distances of 11 km from the volcano. Sheveluch, Avachinsky, Koryakskii and Tolbachik Volcanoes.
Activity is at normal levels.
10'N 159 23'W., Poor weather prevented any visual observation of Veniaminof volcano this week. AVO last received a report of possible ash emission from the intracaldera cone on August 16. Kanaga 51 55'N 177 10'W., Weather clouds also obscured Kanaga volcano for much of the week. The Federal Aviation Administration received no pilot reports of eruptions. The lava flows on the northwest and southwest flanks continue to be active.