震しん央おう距きょ離りしんおうきょりMeanings1nounepicentral distanceTechnical term in seismology; the distance from the epicenter to a given observation point.震しん央おう距きょ離りが大おおきいほど、地じ震しん波はの到とう達たつ時じ間かんは遅おそ