It wasn't even the headliner on NHK's NewsWeb (https://www3.nhk.or.jp/news/), but a relatively faraway Typhoon No. 2 (internationally known as Mawar) is featured instead. It's a nothing-burger in Japanese terms.
The NHK article you linked is about a death by shooting in Machida, and unrelated to this earthquake. There is an article about the earthquake from about four hours before that one was posted (https://www3.nhk.or.jp/shutoken-news/20230526/1000093005.htm...), though, and it doesn't mention deaths. That one was posted specifically in the section for Tokyo metro area (首都圏) news rather than national news, which does lend credence to the notion that fatality-less earthquakes don't garner much of a news cycle.
> ...but a relatively faraway Typhoon No. 2 (internationally known as Mawar) is featured instead.
Relatively far away, but quite important given Guam is a very popular summer destination for Japanese tourists, and Mawar was a Category 4 super typhoon when it hit[1].
(this was edited to remove an unrelated article that I misread, as it was mentioned in a comment here is the link if you're interested: https://www3.nhk.or.jp/news/html/20230526/k10014079771000.ht...)