We held the International Joint Workshop on Slow-to-Fast Earthquakes 2022 at Nara Kasugano International Forum I-RA-KA, from September 14 to 16. It was a great success, with 134 participants on-site and 142 participants online only. Despite the difficulties in travelling to Japan, there were 20 participants from the U.S., Mexico, France, Switzerland, etc. We had six keynote speeches, 24 oral presentations, and 112 poster presentations (19 of which were online). The breakout sessions, which were held first time this year, were also very successful and demonstrated a new way of organizing the meeting. Prior to the meeting, a meeting for young researchers was held on the 13th, and after the meeting, a field trip to Matsuzaka and Ise in Mie Prefecture was held on the 17th and 18th. Fifty participants, including some from overseas, took part in the field trip.