The Great East Japan Earthquake has resulted in various implications for media regulation. The main framework for media regulation in Japan is based on partial regulation and dualism designed for maintaining media pluralism, while relying on market mechanism with mitigating barriers to entry and regulation on the concentration of ownership in accordance with digitization and a decrease in the scarcity of the radio spectrum. In an extreme and confused situation such as an earthquake, reliance on 'one, absolute voice' is sought, but this necessarily leads to restrictions on freedom of speech by the authorities. The earthquake challenged the resilience of media policy, which is inclined to pave the way for the normative concept of the marketplace of ideas, and requires a reassessment of its orientation. The situation of both supply side and citizen/user side will be examined with surveys observed just after the earthquake. How its intended aims and philosophy have functioned through the disaster will be clarified and the new direction of media policy in a convergent era will be induced.