Assertion: volcano's eruption | /r/CapableOf | begin with immense crashing noises
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text: The eruptions themselves began with immense crashing noises that were heart-rending at a distance of <= 50 m. Initially a diffuse ash plume would boil up from vent 3 and turbulently shoot to ~ 50 m, then large but continuously fragmenting incandescent lava lumps would be ejected at extremely high velocity.