Barbarian city razed after conquest

At the end of game Curious-mesa-90, the barbarian city was razed instead of becoming mine after battle. Was this due to a cap on number of cities? Thanks!

there's 7 cities max - but maybe journal should be more explcit

I only had 6 out, but I did lose one to earthquake event earlier.. not sure if that lowers the cap to 6.

yes major earthquake does remove city pieces permanently. I'll improve logging.

Thank you!