I can’t verify the exact count for Minato-ku this June from the information available here, so I can’t give a reliable number without risking a wrong answer. The most relevant public sources for Japan earthquake records are the Japan Meteorological Agency’s earthquake information pages, which list recent seismic activity for Japan.

What I can say

  • Minato-ku is in Tokyo, and earthquake listings for Japan are typically tracked by the national weather agency.
  • The source available here shows broad Japan-wide earthquake reporting, but not a clean, directly countable June total for Minato-ku specifically.

Best next step

  • Check the Japan Meteorological Agency’s earthquake information list and filter for Minato City / Tokyo for June entries.
  • If you want, I can help you turn a Japan earthquake page or a list of events into a precise June count for Minato-ku.