Agency: Protección Civil del Gobierno de Chiapas
Name: Plan de Acciones Semaforización [Traffic Light Action Plan]
Elements of VAL System
| Domain | Terrestrial or All |
| Volcano | Tacaná |
| Number of levels | 7 |
| Scheme range | 7-level scale |
| Lowest level | Prealerta Color Verde Fase 1 |
| Highest level | Prealerta Color Rojo Fase 2 |
| Level name type | Color, Number, & Word |
| Volcanic activity | Yes |
| Hazards possible | Yes |
| Locations affected | Yes |
| Potential impacts | Yes |
| Forecast language | Yes |
| Timing language | No |
| Actions to take | Yes |
| Agency actions | Yes |
| Link to evacuations | Yes |
| Reporting frequency per level | No |
| Link to monitoring thresholds | No |
| Step-up and step-down language | No |
Other Mexican VAL schemes can be found below:
VAL sources and links
The images below are static examples of VAL information pages and DO NOT represent current alert levels. While we strive to maintain the links below, they may not always work. For the current alert level, please consult the proper institutional authorities.