Volcano Live
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Volcano Alerts - John Seach
Note: Information here is for educational purposes only.
It does not replace formal disaster information.
In an emergency seek advice from local authorities.
There are two main volcano warning systems - colour codes, and alert levels. Warning systems are specific for each volcano. It is impossible to predict the date of an eruption. Volcano warning systems are based on a probability of an eruption or hazard.
Indonesia Alert System
Aktif Normal |
Monitoring of visual, seismicity and other volcanic event do not indicate changes. | No eruption in foreseeable future. |
Waspada (alert) |
Increasing activity of seismicity and other volcanic events, and visual changes around the crater. | Magmatic, tectonic or hydrothermal disturbance, no eruption imminent. |
Siaga |
Intensively increasing of seismicity with supported by other volcanic monitoring, obvious changes of visual observation and crater. based on observation data analysis, the activity will be followed by main eruption. | If trend of increasing unrest continues, eruption possible within 2 weeks. |
Awas |
Following the main eruption, the initial eruption begin to occur as ash and vapor. Based on observation data analysis, the activity will be followed by main eruption. | Eruption possible within 24 hours. |
New Zealand Alert System
| Typical background surface activity; seismicity, deformation and heat flow at low levels. | Usual dormant, or quiescent state. | |
| Apparent seismic, geodetic, thermal or other unrest indicators. | Initial signs of possible volcano unrest. No eruption threat. | |
| Increase in number or intensity of unrest indicators (seismicity, deformation, heat flow etc). | Confirmation of volcano unrest. Eruption threat. | |
| Minor steam eruptions. High-increasing trends of unrest indicators, significant effects on volcano, possibly beyond. | Minor eruptions commenced. Real possibility of hazardous eruptions. | |
| Eruption of new magma. Sustained high levels of unrest indicators, significant effects beyond volcano. | Hazardous local eruption in progress. Large scale eruption now possible. | |
| Destruction with major damage beyond active volcano. Significant risk over wider areas. | Large hazardous volcanic eruption in progress. |
Russia
| COLOR | State of the Volcano |
| GREEN | Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state. |
| YELLOW | Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase. |
| ORANGE | Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway with no or minor volcanic-ash emissions [ash-plume height specified, if possible]. |
RED |
Eruption is imminent with significant emission of volcanic ash into the atmosphere likely OR eruption is underway or suspected with significant emission of volcanic ash into the atmosphere [ash-plume height specified, if possible]. |
Alaska Alert System
| Volcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state. | |
| Volcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase. | |
| Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway with no or minor volcanic-ash emissions. | |
| Eruption is imminent with significant emission of volcanic ash into the atmosphere likely OR eruption is underway or suspected with significant emission of volcanic ash into the atmosphere. |
Vanuatu Volcanic Alert Level
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Colombia Alert System
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| IV Active volcano and stable | The volcano could be on a state basis that characterized the period of rest or stillness, or record seismic activity, fumarole or other manifestations of activity in that area are predominantly the most immediate or near the center of the issue, so it does not represent a risk for the populations and economic activities in its area of influence. |
| III Changes in the behavior of volcanic activity | Variations in the levels of the parameters derived from the monitoring indicating that the volcano is above the threshold base and that the process is unstable and may evolve by increasing or decreasing these levels. Phenomena can be registered as swarms of earthquakes, some of them senses; emissions of ash, lahars; morphological changes, noise, smells of volcanic gases among others, which can alter the quality of life of the populations in the zone of volcanic influence. |
| II Likely eruption in days or weeks | Significant changes in the development process of volcanic derived from the analysis of the indicators of the parameters of surveillance, which can evolve in the event (s) Eruptive (s) of an explosive or effusive. |
| I Eruption imminent or in progress | The eruptive phase is explosive or effusive can be composed of several episodes. The time for preparation and response is very short. |