火ひの輪わMeanings1nounRing of FireRefers to the circum-Pacific volcanic belt. Often used in geological or disaster-preparedness contexts.See also: 環太平洋火山帯日本にほんは火ひの輪わに位い置ちしているため、地じ震しんが多おおい。Japan is located on the Ring of Fire, so earthquakes are frequent.