Aptos is Now Japan:-).
Posted by Bob Shannon-Pinpoint on August 06, 2000 at 09:16:32:

It appears that the Aptos quake was a lousy telemetry problem. It has been removed. The Bonin Is, Japan quake appears to have been the culprit according to Stephen. He had the trace but accidently erased it......but the helicorders were picking up the 7.2 on Bonin.
Bob