A method for providing an event message indicative of an imminent event for a vehicle. In a first step, a first event message and a second event message are initially received. The first event message represents a signal output by a first mobile terminal device in response to the imminent event; and the second event message represents a signal output by a second mobile terminal device in response to the imminent event. In a further step, an aggregated event message is generated on the basis of the first event message and the second event message. A step follows for ascertaining a plausibility value to check the plausibility of the aggregated event message. Finally, the aggregated event message and the plausibility value are output. The aggregated event message and the plausibility value represent a signal that is receivable from at least one mobile playback device.