Centuries-old legends say that more than 3,000
years ago the God of fire looked down from the volcano, Nevado
de Colima, to advise and give solace to the inhabitants of this
region. His hot-tempered younger brother, who resided in the Volcan de Colima, instilled fear in the hearts of his
worshippers and would severely punish those who didn't please him.
Driving north from
Manzanillo, tourists will always remember their first view of the majestic mountains of
Colima. The inactive, snow-capped Nevado de Colima,
towering above 14,200 feet and its active smoke- and lava-spewing partner, Volcan de Colima, at more than 13,000 feet overlook
a lush, forested valley and tranquil lagoon.
The Colima volcano is the most active volcano in Mexico, having
erupted violently several times over the last 450 years. About 4,000 years ago it produced
a cataclysmic avalanche much larger than that of Mount
St. Helen's. Written accounts of the volcano's eruptions date from
shortly after the Spanish conquest of Mexico.
One of the earliest recordings of an eruption was in 1576,
followed by another in 1590. From 1611-13 there was a period of violent pyroclastic
explosions (reminiscent of Pierce Brosnan's "Dante's
Peak") with strong earthquakes.
There was peace at last for 138 years, but in 1743 a strong
earthquake was felt in Ciudad Guzman in the neighboring state of Jalisco. In 1749, another
eruption occurred; in 1770 an enormous outpouring of ash; in 1795 an eruption of glowing
cinders, and finally in 1806, an earthquake that killed an estimated 2,000 people in
Ciudad Guzman. Sporadic eruptions continued through 1818; then, for 51 years, the volcano
showed no eruptive activity.
In 1869 an unusual occurrence happened. A small parasitic cone,
now called El Volcancito, formed
one-kilometer northeast of the main crater. Continued weak activity interspersed with some
fairly potent explosions continued through 1913, when a major eruption occurred,
characterized by heavy ash flows and the formation of a summit crater measuring more than
900 feet in depth.
Once again, the
pressure was relieved, and the volcano stood essentially dormant for 48 years. In 1941,
the city of Colima was on the receiving end of a strong earthquake, resulting in massive
destruction. Much of the city's historical buildings had to be rebuilt after this quake.
Minor eruptions continued 1961 through 1981, with a new dome
formed in the eastern part of the crater. In 1985, a magnitude 8 earthquake opened new
cracks, followed by an ash eruption in 1986, and an explosion and avalanche from the dome.
New vents opened, releasing some of the built-up pressure, but in 1991 and 1994 it erupted
again.
The current status on the volcano is that it is very active. In
November of 1998, 250 people were evacuated from villages surrounding Colima due to
warnings that an eruption was likely to occur. Thousands of small tremors have been
recorded at the volcano. A plume was seen above the volcano on November 18. Planes
surveying the volcano recorded temperatures of 1,470 degrees Fahrenheit inside the crater.
Lava was also reported to have risen high within the crater.
On
February 11 two years ago, a major eruption of the volcano forced the evacuation of 118
people from the town of San Marcos. Vulcanologists detected sulfur dioxide in the
volcano's emissions. An eruption plume reached a height of 3 miles. There were no injuries
or property damage reported, but grass fires were started from a small lava flow.
On February 14, further explosions and small earthquakes forced
the evacuation of about 350 more individuals from the northern flanks of the volcano.
Small pyroclastic flows have accompanied many of these explosions.
Activity at the volcano increased until on February 22, four
eruptive explosions occurred at the summit. There was also an increase in seismic
activity.
Things quieted down until May 11, when a strong explosion occurred
at the summit dome. The shockwave could be felt in the city of Colima, and indeed, this
author was in the city at the time. One could hear a rumbling noise, like thunder, and a
blast, which sounded like dynamite. Since the city of Colima was doing a lot of roadwork,
this author assumed that was the cause of the sound. The explosion triggered two small
pyroclastic flows on the northwest side. The ballistic projectiles reached distances of
almost 8 miles, causing small fires on the southern, western, and southwestern parts of
the volcano, but otherwise, no other damage.
Since June 1, the volcano has been experiencing explosive
activity. Six explosions occurred on June 2. On June 5 there were 4 explosive events. On
the 7th, 9 explosions occurred, and still another on the 8th. On the 16th, and then again
on the 18th, more explosions occurred.
Activity is
continuing throughout the month of July. How dangerous is all this activity? With
modern-day seismographic equipment, numerous volcanologists and seismologists studying the
volcano and recording various readings, with Mexico's Civil Protection agency ready to
assist with evacuations should it be necessary--almost none. The volcano is an hour and a
half away from Manzanillo (the base is 90 miles away), and 45 minutes from the city of
Colima. The evacuated villages are on the northern slope, at the base of the volcano, and
Manzanillo is to the south. Because it is currently the most active volcano in Mexico,
people are coming from all over the world to see it and study it. Tourists, when deciding
where to go on their vacation, should make sure to visit one of Mother Nature's most
amazing natural wonders. Remember, Hawaii sees millions of visitors a years, and tours are
frequently interrupted by a lava flow blocking the main highway. There is virtually no
chance that visitors to the state of Colima could experience a similar situation, but a
call to Proteción Civil in Colima, (01 for long
distance), (331) 45944, (331) 25858, or FAX
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