Well, it would be strange if a society was totally immune to crazy rumors in the wake of a disaster in a historical scale. According to Asahi Shimbun (via Dong-A Ilbo,) around northeastern Japan rumors such as "there is a group of foreigner thieves," "there are more rape cases," etc. are spreading.
The zainichi community -- Korean-Japanese people who are mostly the holdovers from the colonial era -- is apparently getting somewhat nervous, as they clearly remember the Kanto massacre. In the aftermath of a massive earthquake in 1923, false rumors spread that Koreans were poisoning the well in a plot to kill Japanese. Vigilante mob violence broke out, which killed numerous Koreans living in Japan -- estimates run as high as 6600 Koreans dead. According to the Dong-A Ilbo article, some parts of the Japanese Internet are starting to blame Korean-Japanese or Chinese-Japanese communities for the perceived lawlessness.
The world is admiring Japan for its calm and orderly response to this unimaginable disaster. Let us hope that Japan can keep it up.
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