Abstract
After the off the Pacific coast of Tohoku Earthquake occurred on March 11, 2011, numerous aftershocks continued and a lot of Earthquake Early Warnings (EEW) were announced although some of them failed to estimate intensity properly due to technical limitation. In this paper, two questionnaire surveys were conducted to understand people’s awareness of EEW before and after the earthquake on March 11, 2011. As a result, it was verified people’s knowledge and their abilities to recognize EEW after hearing or seeing the warning increased. When they knew the technical limitation before the earthquakes, their capacities to accept the failure of EEW was higher. [This abstract is not included in the PDF]
