10-15 хвілін па адзнаках нямецкага сейсмолаг Rainer Kind из Helmholtz Research Centre for Geosciences in Potsdam у інтэрв’ю Japan’s tsunami victims only had 15 minutes warning, Deutsche Welle, March 12, 2011, accessed March 13, 2011.
15-30 хвілін па адзнаках В. В. Цітова, дырэктара the National Oceanic and Atmospheric Administration’s Center for Tsunami Research, у паведамленні Japan tsunami: Toll could rise to more than 1,300, NDTV-hosted copy of an article by Martin Fackler, The New York Times, March 12, 2011, accessed March 13, 2011.