Data for 1991 and 1994 received from UHSLC 1992-93 data not included because of poor quality UHSLC report a level shift of about -15cm on 11 May 1962 instrument type: standard gauge with float and stilling well
Documentation added 1997-01-30
Large earthquake offshore of Mexico about 19 degrees North on 9 October 1995 with large tsunami generated. See article by A.E.Filonov in EOS, 78(3), 1997.
Documentation added 2002-09-26
Earthquakes may have affected the Acapulco record with a sea level fall of order 300 mm in 1962. Another earthquake occurred in 1995 (source Dr. Osvaldo Sanchez, Inst. de Geofisica, 2002).
Documentation added 2015-06-24
Levelling information has now been received from UNAM Mexico. Primary benchmark is now BM 1B 2.529m above TGZ. The TGZ has not changed.
Servicio Mareografico Nacional Instituto de Geofisica, Ciudad Universitaria Delegacion de Coyoacan 04510 Mexico D.F.