Happy burst-day! One hotspot on Hawaii's Kilauea volcano, the Halema'uma'u crater, will mark its fifth anniversary of constant eruption on March 19. ->
A new threshold for flying around volcanic ash plumes will lead to less delays and cancellations during the current Icelandic eruption.
Large earthquakes can trigger volcanic trouble, and magma movement can cause tremors. Geologists often use information from one to help predict the other.
As Iceland's Eyjafjallajokull continues to erupt, a NASA satellite images the region and estimates that the volcano is generating enough energy for 60,000 US homes.
Super-volcanoes may go from zero to apocalypse in only a few centuries.
A volcano may have snuffed out the light of a tricky glowing cockroach.
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