Proper communication and preparedness planning before a disaster occurs is very important to minimize the risk and the resulting damage. This study takes place in the city of Surabaya with the consideration that Surabaya is traversed by two active faults or tectonic plate faults that can cause earthquake potential. This study focuses on the preparedness phase, namely the efforts made in anticipating disasters, through organized activities. Due to the nature of disaster which is full of uncertainty, communication is the main foundation in minimizing this uncertainty. Communication in the context of disaster plays a role as access to information needs in the process of prevention, preparation and mitigation through the dissemination of information related to disasters. The main key in responding to disasters is to build an effective communication planning strategy in coordinating information before a disaster strikes. This study focuses on analyzing anticipatory activities carried out by Disaster Management Agency (BPB) and Community Environment (Linmas) related to the potential for earthquakes in the Surabaya City area to improve community preparedness. This paper is studied qualitatively by using in-depth interview method. Furthermore, this study was analyzed using the Disaster Communication Management model according to Haddow & Haddow. The result indicate that with four main foundations in building effective disaster communication, among others; Audience Focus, Leaders Commitment, Situational Awareness and Media Partnership. It is important to anticipate efforts from disaster mitigation by the Surabaya City Government in reducing the risk of disaster impacts that can occur in potentially dangerous areas.