غَيْرَ مُقَارِنٍ لِدَعْوَى النُّبُوَّةِ
The event is not accompanied by a claim to prophethood.
A prophet's muʿjizah serves as evidence for the truth of his prophetic claim. A karāmah is connected to a righteous non-prophet who makes no such claim. Both depend on Allah's power.
Similarity in outward extraordinariness does not make the two religiously equivalent. Their associated claims and evidential roles are decisive.