In general, mafic magmas are more likely than andesitic to erupt explosively.

Name: In general, mafic magmas are more likely than andesitic to erupt explosively.
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Andesitic magmas have a higher silica content than mafic magmas, which makes them more viscous and prone to buildup of gas pressure, leading to explosive eruptions. Mafic magmas, on the other hand, are less viscous and have lower gas content, which makes them more likely to erupt effusively (i.e. non-explosively).

In General, Mafic Magmas Are More Likely Than Andesitic to Erupt