Updated: September 25, 2018
On September 6th, 2018 at approximately 3:00 am JST (6:00 pm GMT), a strong earthquake (Magnitude 6.7) occurred in the Iburi region in southwestern Hokkaido, Japan's northern island.
For latest information on train and flight operations, please check official websites from below page.
Hokkaido Government 
Message from the Governor of Hokkaido (September 18th)
Safety information of Hokkaido trip by Hokkaido District Transport Bureau
Airport
At New Chitose Airport, normal operation has started. Please see the website below for the latest information.
New Chitose Airport
National airlines
Trains
The operations of JR Hokkaido, Hokkaido Shinkansen, Rapid Airport Trains, Sapporo Municipal Subway, and Tram lines in Sapporo city have started regular operations.
There are still a few local train lines that are delayed or suspended. Please check the latest information on the following websites.
Free Wi-Fi Service for emergency
Free public Wi-Fi service with SSID “00000JAPAN” is available in Hokkaido since September 6th. It can be connected with all Wi-Fi available devices, without any contract with telecommunication careers in Japan (only in case of disasters).
*Free Wi-Fi Service will be discontinued sequentially after Sep 25.
Multilingual telephone consultation service by Hokkaido Government
Hokkaido Government has launched multilingual telephone consultation service for people living or traveling in Hokkaido. The serivice is avaliable in English, Chinese and Korean on weekdays from 8:45am to 5:30 pm.Contact information: 011-204-5937 or 011-204-5092
Safety tips for travelers
Japan Tourism Agency's "Safety tips for travelers" contains links to other sites controlled by third-party information providers on weather information, weather warning & advisories, news, medical information, and list of embassies and consulates-generals in Japan.
https://www.jnto.go.jp/safety-tips/eng/
For safe travels in Japan
Japan Tourism Agency's "Guide for when you are feeling ill ” provides medical institutions information, search function, and guideline. The website is available in English, Chinese, and Korean.
Tourist information centers throughout Japan certified by JNTO can offer practical information about airport facilities, flights, accommodation and transport. Please check the website below to find the information centers nearby.
https://tic.jnto.go.jp/
Further queries may be directed to JNTO Tourist Information Center (TIC) at 03-3201-3331 (or +81-3-3201-3331 from outside Japan) available 24/7 in English, Chinese, Korean and Japanese languages.
Interpretation call center or email is also available 24/7 at 050-5814-7230 or bricks-emergency@bricks-corp.com in English, Chinese, Korean, Portuguese and Spanish.
http://www.bricks-corp.com/en/
