Nyrigongo is a volcano which does not erupt very ...

The eruption of 17-18 January 2002, and subsequent eruptive events. 5. Local volcanologists informed us that from 4 January the population were aware of frequent felt earthquakes which continued for nearly two weeks until the eruption, which began without an increase in earthquake activity, or any other warning, at 0830 on 17 January. ................
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