Phasor Measurement Units offer considerable insights into system disturbances whether they are connected to the transmission or distribution system. Multiple PMUs provide a large amount of streaming data that can reveal an event's severity, duration, and location. This paper discusses the development of a passive MQTT event-stream detection framework between 2 PMUs on the island of Ireland. It presents a simple and straight forward methodology of event detection and event classification. Applying simple query functions to PMU streams such as system frequency, RoCoF, and symmetrical components efficiently detects events on a power grid. Power system events such as short circuits, frequency transients and Very Low Frequency Oscillations captured on the Irish Electrical grid are discussed to validate the proposed framework.