More:Information on Japan's Earthquake and Tsunamis | How You Can Help | Travel-Related and Contact Information | For concerns about a specific U.S. citizen in Japan, email JapanEmergencyUSC@state.gov.
U.S. Ambassador to Japan John Roos offered a message today to American citizens in light of the recent tragedy in Japan. The Ambassador discussed how the United States is working to provide up-to-date information to ensure the safety and security of our citizens.
Ambassador Roos said, "Today our hearts remain with our Japanese friends who, after suffering this devastating tragedy just four days ago, have to undertake recovery and reconstruction and address the ongoing nuclear emergency.
"We understand that many of you are anxious and have questions in the shadow of the Fukushima emergency, since we are in the midst of a complex, constantly changing, and unpredictable situation. In this fluid situation, our commitment to our citizens is to accumulate accurate information and assess it sufficiently in order to make important judgments.
"Since the first reports of trouble with the reactors, American nuclear experts have worked around the clock to analyze data, monitor developments, and provide clear assessments on the potential dangers. While at times we have had only limited access to information, I am personally committed to assuring that our experts have as much access and information as possible, and the necessary resources to understand the situation. I have personally been deeply engaged in these efforts.
"After a careful analysis of data, radiation levels, and damage assessments of all units at Fukushima, our experts are in agreement with the response and measures taken by Japanese technicians, including their recommended 20 km radius for evacuation and additional shelter-in-place recommendations out to 30 km.
"Let me also address reports of very low levels of radiation outside the evacuation area detected by U.S. and Japanese sensitive instrumentation. This bears very careful monitoring, which we are doing. If we assess that the radiation poses a threat to public health, we will share that information and provide relevant guidance immediately.
"The United States will continue to work around the clock to provide precise and up-to-date information supported by expert analysis to ensure the safety and security of our citizens and to help Japan in its time of great need. U.S. citizens in need of emergency assistance should send an e-mail to email JapanEmergencyUSC@state.gov with detailed information about their location and contact information, and monitor the U.S. Department of State website at travel.state.gov."
You can read the Ambassador's complete message here.