How do you know when a volcano cannot erupt anymore?
When there are no signs of an active magma chamber beneath the volcano (no unusual seismic activity, no volcanic gasses escaping etc.), and when there hasn't been any activity for a long time span (at least 10,000 years).
More on VolcanoDiscovery:
Volcano & Earthquake news feeds
: If you like to use RSS to access the latest news about volcanoes and earthquakes without needing to visit the site, have a look at our available news feeds!
Volcano Calendar 2020
: We're proud to present our 2020 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past two years.
List and map of all volcanoes in Africa. Most volcanoes are located in the Great Rift Valley, but there are more.