A method of mapping a network fault is provided. Information is received concerning geographical coordinates of terminal network elements and their association with shared network components. A performance parameter is transmitted via upstream network communications from the terminal network elements is monitored. Terminal network elements from which the monitored performance parameter are unacceptable relative to a predetermined threshold for the performance parameter are identified, and a cluster of terminal network elements estimated to be subject to a common network fault is defined. The cluster includes terminal network elements that are identified as reporting an unacceptable performance parameter, as being within a predetermined geographic distance from each other, and as being associated with a common shared network component. A geographic map is populated with a single cluster alarm and includes an identification of the terminal network elements within the cluster. An electronic device and non-transitory computer readable storage medium are provided.