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3.946 
March 23 - Mrora dawn until 5 AM the eruption of the black high silent 
column of the night ceases and now begin some very deep central explosions. 
At 8 the column returns with yellow cauliflowers of vapor. These continue 
for two hours, reverting to eruptions that Ing. Ezequiel Ordonez calls 
"gaseous eruptions, 'with weak noises and with vapors that are scarcely 
y~ 
noticeable or that are bluish white and simple or like those of today which 
17 — 
'V’ithout visible bombs or ash 
are yellowish and form white cumulus clouds 600 meters above the crater. 
In the afternoon some dense vapors with sand are discharged toward the west 
and northwest. 
A new Ahuan lava flow passes in part toward Zapicho, in part 400 meters 
east of the cone. The lava vent is not enough [to relieve the crater! for 
the crater increases in activity, without strong explosions, yet with some 
that shake the camp at San Juan. “7ith each weak or profound explosion, 
scoria or bombs are ejected, according to the noise. The scoria thrown out 
from the crater or from the lava vent reach a size up to 3 meters in volume, 
which on falling form a cake and those that fall on the lava mold themselves 
about the rocks. Only ash is now rare, but in contrast there are heavy 
dust clouds that do not allow one to see for 100 meters. These occur in 
an area 8 kilometers about the volcano, especially in the west and east. 
26 — The lava of the south throat begins now in a vent that has the form 
1 / 
o^ an open fissure from a small anguero attached to the cone and that has 
1/ Anguero/= a trench for conveying water. 
aguera? 
dikes (levees) as walls between which the liquid lava flows. At its point 
of origin it^ flows 10 meters per hour. At the front there are two wide 
