Paricutin - page 5 
June 13 - Rain most of the day. 
In the morning went northeast of the casita. Set up the camera 
in a broad open valley and soon noticed that there were two columns of smoke, 
one, apparently west of the other, gave off dense gray smoke, the nearer one 
less smoke and some rocks. Observed these 2 columns a number of times 
until clouds obscured the cone. 
At 2:30 rain ceased for a while, so planted the tubes in fumaroles. 
In the”valley" opposite Dr. Atl's house noticed a new ridge of pushed up, 
oxidized ash, extending from the S. E. and reaching about 30 f high, and further 
on a section of now lava flow between two hills. This proved to be a new 
flow, issuing from beneath the ash near the original flow, flowing to the north- 
west, to the orilla of Paricutin, then down the or ilia. 
Vihen we returned to the casita, there was little smoke from the cone, 
and one could clearly see a larger crater in front, with a second one behind, 
separated by a high steep medial ridge. The north crater was entirely quiet, 
but the second one was in active eruption. 
Night: A fine display from the south crater, throwing small rocks, 
sometimes 1,000 meters high and often showning black smoke with incandescent 
streaks. This erupt ion was comparatively quiet, with no other sound than the 
swish and impact of rocks. Continued so until we returned- retired. 
Returning from the flow in the night noticed a number of new glowing 
spots in the old flow. These appeared to be, not new cracks developed by the 
push of the new lava, but rejuvenation of already existing fumaroles. 
June 13. Cloudy and rain. 
Daybreak. Tremendous grating roar, occasionally crackling roar, 
continuous without interruption except for very rare periods of one half minute 
of complete silence. The continuous vibrations of this noise was perceptible, 
sometimes strong. A small smoke column, and apparently small stones shot up 
in a swift and continuous stream like a geyser. Appears to be due to almost 
continuous escape of gases. All tnis from soutn crater. North cra^ej. 
dormant . 
Don Felipe came in some agitation to tell us Paricutin wa3 threatened 
by the flow. When we arrive found the flow had advanced well beyond the old 
flow and was flowing down the barranca at a rate of 25 meters per hour and 
laterally at only 2—1/2 m. p. h. The canyon is about 6 meters deep and four 
wide. Character of flow similar to yesterday. Faint bluish fumes from lava 
surface. No smell. Quiet flow. Planted some fumarole tubes. 
June 14 - Cloudy. 
During early morning hours much irregularity in noises, sometimes roars, 
sometimes like high wind and occasional tremendous bursts. One very strong 
one at 2 AM. 
In the morning one could see a new lava flow, cascading rapidly 
between a small pyramidal hill at the base of the north crater, and the eastern 
wall of the break and flowing between this break and the lowest terraceto the 
base of the cone and beyond. The point of exit was about 7b meters below the 
lip of the crater, behind the pyramidal hill. Some additional slumping took 
place around the lip. The lava gave off bluish fumes sometimes tinged a 
brownish yellow. 
The south crater gave off continuous smoke cloud, accompanied by 
an occasional roar, and puffs like those of a locomotive starting. At inter- 
vals the north crater gave off faint bluish or brownish smoke and at rarer 
intervals bursts of incandescent rock and black dust clouds. 
