Note: This VAL system was replaced. The updated VAL system can be found here.
Agency: Instituto Geográfico Nacional (IGN)
Name: Niveles de la Actividad Volcánica [Levels of Volcanic Activity]
Elements of VAL system
| Domain | Terrestrial or All |
| Volcano | All |
| Scheme range | 0–5 level scale |
| Lowest level | 0 |
| Highest level | 5 |
| Level name type | Color & Number |
| Level for lack/loss of monitoring | No |
| Volcanic activity | Yes |
| Hazards possible | No |
| Locations affected | No |
| Potential impacts | No |
| Forecast language | Yes |
| Timing language | No |
| Actions to take | No |
| Agency actions | Yes |
| Link to evacuations | No |
| Reporting frequency per level | Yes |
| Link to monitoring thresholds | No |
| Step-up and step-down language | No |
Related References
García, A., Berrocoso, M., Marrero, J. M., Fernández-Ros, A., Prates, G., De la Cruz-Reyna, S., & Ortiz, R. (2014). Volcanic alert system (VAS) developed during the 2011–2014 El Hierro (Canary Islands) volcanic process. Bulletin of Volcanology, 76(6), 825. https://doi.org/10.1007/s00445-014-0825-7