Figure 12. Relative sea level (RSL) curves for Icy Point (this study) and Palma Bay (Mann and Streveler, 2008)—two sites separated by the Fairweather fault. Both sea level curves are tied to the present (0 yr BP) and defined by shoreline features referenced to the elevation of the modern shoreline angle, which approximates Mean High Water (MHW). The greatest contribution to uncertainty in these curves is the timing of deceleration in the rate of eustatic sea level rise in the early Holocene, which allowed local processes to exert greater influence on RSL change at Icy Point. The time when eustatic sea level ceased to be the dominant control on RSL is best approximated by the age of abandonment of the Terrace B paleo sea cliff (see text) at 7.4±1.2 ka. The stair-step pattern of the Icy Point RSL curve (green) reflects shoreline features on Terrace B interpreted as evidence for repeated coseismic uplift that contributed to -42.3 ± 2.1 m of RSL change at Icy Point (RSLΔIP). In contrast, the RSL curve in Palma Bay (blue) shows a history of +4.1 ± ~1 m of RSL change (RSLΔPB) in response to fluctuating ice loads in neighboring Icy Strait and Glacier Bay (Mann and Streveler, 2008). The tectonic component of RSL change (RSLΔTEC), -46.4 ±2.4 m, is the difference between the two RSL curves separated by the Fairweather fault (RSLΔTEC = RSLΔIP – RSLΔPB, Table 4).