This old vent no longer liberates gas but the new one does. An ash eruption did occur at 1526 on the 24th. Normal seismic levels persist without volcanic earthquakes at present. The level of seismic activity under Sheveluch continues to increase. The number and the energy of the largest events have increased.
Clouds obscure the volcano and prevent visual observation.
The course of the present seismic activity suggests that if an eruption occurs, it may be similar to that of April 1993. The 1993 eruption was preceded by a significant increase in volcanic activity. The intensity of spasmodic tremor steadily increased from April 5 to 15. The maximum number of earthquakes were registered on April 21-22. Visual observation showed that the frequency of explosions in the area of the active dome had increased sharply in early April.