Note: This VAL system was in use in 1983. The current VAL system can be found here.
Agency: Provincial Disaster Committee (PDC)
Name: 4-Stage Alert System
Elements of VAL system
| Domain | Terrestrial or All |
| Volcano | Closed-system volcanoes |
| Scheme range | 4-level scale |
| Lowest level | 1 |
| Highest level | 4 |
| Level name type | Number |
| Level for lack/loss of monitoring | No |
| Volcanic activity | No |
| Hazards possible | No |
| Locations affected | No |
| Potential impacts | No |
| Forecast language | Yes |
| Timing language | Yes |
| 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 | N |
Related References
McKee, C., Itikarai, I., & Davies, H. (2017). Instrumental volcano surveillance and community awareness in the lead-up to the 1994 eruptions at Rabaul, Papua New Guinea. In: Fearnley, C.J., Bird, D.K., Haynes, K., McGuire, W.J., Jolly, G. (eds) Observing the Volcano World. Advances in Volcanology. (pp. 205-233). Cham: Springer International Publishing. https://doi.org/10.1007/11157_2017_4