The molten basaltic material beneath Yellowstone is not highly concentrated, which generally prevents large eruptions despite the large volumes present in the system.
The majority of the molten material lies in small volumes within cracks and faults, meaning the conditions necessary for eruptions are not currently met.
While the rhyolitic material present could potentially fuel a small eruption, the overall volume of melted material remains low and eruptions are considered unlikely.
There are smaller blobs of molten material near the surface that receive heat but, due to their sizes, are not currently significant threats for large eruptions.
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