This was my first real earthquake since moving to Kyushu. After it stopped I looked it up, and the first place to post the epicenter and shindo was NERV's twitter...which is named after the org from the anime and has an anime screenshot as its banner (https://x.com/EN_NERV). Apparently it's a real disaster information service, though.
It's been mentioned before but maybe interesting to some (https://news.ycombinator.com/item?id=38835419).
You can keep an eye on this english tracker in the browser too https://earthquakesjapan.com
The Nerv app is quite good. It usually gives real-time alerts faster than the official sources.
You can even have the weird experience of being notified of an earthquake, watching the shockwave move outward from the epicenter, and feeling it as it passes.
Somewhat unrelated but how did you find the process of moving to Japan (assuming you emigrated there)
It started as a Twitter account during the Tohoku 2011 earthquake, and then subsequently became a “real” service; the IP owners for the Eva agreed to let them use it going forward.