Toshihiko Sugai, Yuichiro Fusejima, Yasuo Awata, Takashi Azuma, Yoshihiko Kariya and Yasuhiro Suzuki: Late Holocene paleoseismicity of the Yoro fault system National Institute of Advanced Industrial Science and Technology. Arkistoitu 22.7.2011. (englanniksi)
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Significant Earthquake: Japan (Arkisto-osoite: http://www.webcitation.org/5ntWzXZwJ 28.2.2010) National Geophysical Data Center, National Environmental Satellite, Data, and Information Service, jota ylläpitää National Oceanic and Atmospheric Administration. (englanniksi)
Toshihiko Sugai, Yuichiro Fusejima, Yasuo Awata, Takashi Azuma, Yoshihiko Kariya and Yasuhiro Suzuki: Late Holocene paleoseismicity of the Yoro fault system National Institute of Advanced Industrial Science and Technology. Arkistoitu 22.7.2011. (englanniksi)
Significant Earthquake: Japan (Arkisto-osoite: http://www.webcitation.org/5ntWzXZwJ 28.2.2010) National Geophysical Data Center, National Environmental Satellite, Data, and Information Service, jota ylläpitää National Oceanic and Atmospheric Administration. (englanniksi)
