“Cabinet Secretariat, Civil Protection Portal Site” has published the notification in multiple languages regard to the appropriate actions to take when ballistic missiles launched from North Korea is flying to Japan. (Japanese, English, Chinese (Simplified, Traditional), Korean)
Please evacuate refer to the notification.
Cabinet Secretariat, Civil Protection Portal Site
Multiple Languages Page: http://www.kokuminhogo.go.jp/en/pc-index_e.html
Please download the flyer here (PDF).