A tsunami magnitude Mt was estimated for the 06-23-2001 Peru tsunami from far-field data. A formula is Mt = log H + B (Ref. Abe, K., JGR, 84, 1561, 1979) H(max. amp.) n B Mt California 0.09m 10 9.3 8.3 Aleutians 0.06m 7 9.3 8.1 Japan 0.15m 26 9.1 8.3 Hilo 0.40m 1 8.5 8.1 Honolulu 0.06m 1 9.3 8.1 H is the average of maximum amplitude and n is the number of stations. The average of Mt is 8.18. Thus Mt is 8.2. This value is close to Ms=7.9 of the USGS QED and Mw=8.0-8.1. I think that the Peru event is not a "tsunami earthquake". Katsuyuki Abe ERI, Tokyo Univ.