=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 02-APR-92 :
South Alaskan Coastline Earthquake Prone - e.g. Magnitude 9.2 Earthquake of 28 March 1964 - See Savage and Plafker, JGR,96(B3), 4325-4335, 1991
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Cordova             821/020 RLR(1974) is 13.2m below BM11
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 1998Dec10 :
Data for 1949-53 received from University of Hawaii Sea Level Center
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Nov-2011 :
Using information from the NOAA website the RLR diagram has been revised. Previous Primary benchmark 11 10.025m above gauge datum no longer appears in the NOAA reports. Secondary benchmark 4050 E 1982 7.498m above gauge datum appears both on the original RLR diagram and the NOAA report. Current Primary benchmark is 4050 Q 1998 16.455m above gauge datum.

