Makomanai Tunnel (幌内トンネル), Toyono Tunnel (豊野トンネル) and Kunimatsu Tunnel (国縫トンネル).

After Oshamambe there's Uchiu Tunnel (内浦トンネル), Konbu Tunnel (昆布トンネル), Miyada Tunnel (宮田トンネル) and Niseko Tunnel (ニセコトンネル)

Yoichi Tunnel (余市トンネル), after Kutchan Nitsuki Tunnel (二ツ森トンネル) and Shioya Tunnel (後志トンネル)

Remaining are Asari Tunnel (朝里トンネル), which got just finished digging in November so one exit isn't even on Google Maps and Sapporo Tunnel (札幌トンネル) which has the least progress done and I can only find one tunnel entry point and one section entry point

Also I'm a retard, the spots I labeled as ventilation or exploration shafts are entry points for various sections of the tunnel.
Also also, the names might be wrong cuz LLMs and all that.

@matrix The one pic looks like some sort of spaceship landed in the woods.

@matrix Why are you interested in this in particular?

@Mr_NutterButter I watched an Abroad In Japan video riding the shinkansen, checked the stops on Google Maps, decided to scroll the entire line and noticed there's construction in progress

@Vo Yes, a lot. All their buildings are built with that in mind. Smaller buildings are built so their walls can flex and towers and skyscrapers are built on standoffs with a hanging ball or rod in the middle that counteracts the movement from the earthquake.
I dunno what specifically they do to tunnels to make them more sturdy though. They probably just pick paths where the rock is unlikely to move.
They also have a shitton of earthquake sensors everywhere so the trains stop before the earthquake hits.