26 
1946 
March 1 - The activity of this volcano continues with a high black vapor 
column, a fantastic column with silent eruptions. The thin, yellowish 
column can be seen for 60 kilometers to the east. One can see it most 
clearly when there are no clouds, as today. The ashes continue to cause 
damage within a radius of 5 or 6 kkilometers. 
2 - Yellowish vapors with silent eruptions, and ashes toward the north 
and west. At times the crater throws out quantities of rocks, which fall 
on all the flanks of the cone. The winds blow from the west causing 
terrible clouds of dust during the day and one sees the ashy mountains 
filled with dust. In the night the tourists that came enjoyed seeing the 
crater as it threw out quantities of incandescent rocks. 
3 - After several days of great activity, today it shows some diminution 
for yellowish vapors rise continuously but without force or explosions. 
In the afternoon only some weak silent eruptions throw out bombs and puffs 
of vapor. 
4 - Since the volcano today is very tranquil, something new is likely to 
occur. From time to time the eruptions continue silently, with puffs of 
cottony vapor, especially when stones or scoria fall back into the center 
the crater. At 6 HI the vapors almost disappear and nothing remains 
but a simple, thin velloxv vapor. There is not even a small light from 
the crater, nor from the lava vents, nor noise; something I have never 
seen before, for when the crater ceased to work, the lava vents increased 
their activity. 
5 - If it were not for the small vapor column, the crater would appear 
complete3_y extinguished* At intervals of less than 15 minutes, trans- 
parent gray vapors appear. Then Ing. Rafael Molina, Antonio Gutierrez 
and I ascended the crater, we observed the two vents in the condition in 
which they are always encountered, in the same N#E.-S*W* line. 
