Passive degassing at the Colima Volcano: constant monitoring

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The volcanic alert traffic light indicates that the Colima Volcano is on alert for passive degassing. The National Meteorological Service (SMN) will maintain continuous surveillance of the colossus, to promptly report changes in its activity that require greater attention.

Weather forecast in the area of ​​the volcano
Cloudy sky, with no visibility towards the volcano area, making it difficult to observe in the event of an exhalation of water vapor, gas and/or ash, (Image 1, webcam network). Manzanillo Colima radiosonde, 06:00 am local time, September 30, 2024: At 5000 m: East wind of 14 km/h. Between 5000 and 7000 m: East wind of 21 km/h. Above 7000 m: East-northeast wind of 16 km/h.

SMN Analysis

There is cloud cover over the volcano area, which would hinder satellite detection in the event of any activity (Image 2). The satellite estimate of rainfall does not show accumulated precipitation in the volcano area in the last three hours, this with a cutoff at 12:00 h today, local time (Image 3).

Ash trajectory

In the event of any exhalation of volcanic ash, gas and/or water vapor, the trajectory forecast of the Hysplit (Hybrid Single-Particle Lagrangian Integrated Trajectory) model, executed at CONAGUA-CGSMN with a possible emission height of 500 meters above the volcanic cone which is 3,839 meters AMSL “above mean sea level” (2,745 meters AGL “above ground level”), indicates trajectories to the west and west-southwest (simulating exhalation every next hour, 6), as it passes through the south and southwest of the state of Jalisco; northeast, north, northwest, west and west-southwest of the state of Colima and over the Pacific Ocean, for the first 12 hours of the forecast, (14:00 to 02:00 local time of the following day). Later, for the last 12 hours of the forecast (02:00 to 14:00 local time of the following day), the trajectories will continue over the Pacific Ocean where they will end. These trajectories predict the main direction of emissions from the plume of gas, water vapor and/or volcanic ash, coming from the Fuego Volcano of Colima.

The legend behind the volcano

The legend has its roots in the colonial period, in the kingdom of Colliman, which in ancient language meant “the place where the old god or the god of fire dominates”, territory where the Fuego volcano and the snowy mountain are located. On the slopes of the Fuego volcano a magnificent palace was erected, home of the king and his court. During a meeting between the Viceroy of New Spain and the monarch of Colliman, whose details are unknown, the enraged viceroy left the palace and ordered its military cordon, denying the exit to any individual.

As the days went by, the lack of water and food began to affect the besieged, hitting the king and his entourage hard. At night, the king tried to lead an escape, which failed when they were discovered by the Spanish forces. In a desperate act, the royal entourage rose to the top of the volcano. Unable to flee, they chose to throw themselves into the crater, losing their lives as martyrs and sowing a legacy of pride among their descendants.

Since then, the volcano erupts every time a descendant of Colliman suffers injustice, perpetuating the memory of that heroic act.

Source: infobae