A method for disseminating Early Warning Messages (EWMs) to subscriber terminals by an Early Warning Unit (EWU) in a mobile communication network is provided. The method comprises identifying at least one base station in a first region and sending a trigger signal to the identified base station for initiating the dissemination of the EWMs. The method further comprises sending an invitation request to one or more peer base stations in a second region and receiving subscriber details from one or more base stations. The method furthermore comprises selectively disseminating the EWMs to the one or more subscriber terminals based on location details of the subscriber terminals using a grid computing architecture. The grid computing architecture facilitates parallel dissemination of the EWMs to the one or more subscriber terminals by splitting the subscriber details into one or more data fragments.