Volcanic eruptions may be triggered by seismic activity.Logical formLearned from14 sentences. A fog can be volcanic.Logical formLearned from14 sentences. A volcanic eruption can be in recorded history.Logical formLearned from14 sentences. An avalanche can be volcanic.Logical formLearned from14 sentences. An (ash disruption) can be volcanic.Logical formLearned from14 sentences. Ash may be released from a volcanic eruption.Logical formLearned from14 sentences. A volcanic rock can be extrusive.Logical formLearned from13 sentences. A conduit can be volcanic.Logical formLearned from13 sentences. Volcanic rock may undergo an outcropping.Logical formLearned from13 sentences. Volcanic activity may cease.Logical formLearned from13 sentences. Remnants can be volcanic.Logical formLearned from13 sentences. A process can be volcanic.Logical formLearned from13 sentences. A volcanic activity can be heavy.Logical formLearned from13 sentences. An intrusion can be volcanic.Logical formLearned from13 sentences. A landform can be volcanic.Logical formLearned from13 sentences.