This last test was with an IRBM not an ICBM and likely with a lofted trajectory. Memes like this are dumb and underestimate NK capabilities. The actual ranges are below:
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In 33 years of North Korea's nuclear missile program, the farthest launch they have achieved is 3,700 km, with a theoretical maximum range of ~7,500 km. I could post a map of all of the world with the caption "super duper super weapon mega-scary range (estimated, not successfully tested)," and it would be equally useful to formulating a policy towards North Korea as either the map you posted or the meme I posted.
As it currently stands, South Korea has not changed its defensive posture re: North Korea, neither has Russia or China. Memes like mine are dumb, but maps like yours are blatant scaremongering, trying to get Americans enthusiastic for another unnecessary war.
Take for example:
Now, do you expect this was published to A) prepare missile defenses, and educate people of the proper terminology of which missiles would likely hit which targets or B) AAAHHHHH scary map with places I've heard of on it! We need to do take care of evil mustache dude before those circles reach places I care about!