USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
August 25, 2004, Nelchina, AK Earthquake (posted 09/01/2004)
Mw 5.3, 08/25/2004, 02:22 UTC, 08/24/2004, 06:22 PM AKDT, 61.590 N, 146.404 W, 39.3 km depth, Regional Network ID# ak00039525
Sta Inst Inst State: City; Recorder Location Owner Lat Lon Dist Az Ch Sensor Orient PGA PGV PSA at:
Code type S/N     deg deg km deg No type deg cm/s/s cm/s 0.3 s 1.0 s 3.0 s
2784 K2 1728 AK: Valdez; City Hall USGS 61.1302 -146.3547 51.3 177 1 EpiSen 90 28.4 -2.8 6.44 3.920 0.1420
                  2 EpiSen 360 23.6 2.1 3.42 2.880 0.1400
                  3 EpiSen UP 16.2 0.9 3.30 0.797 0.0388
2723 K2 1727 AK: Valdez; Dock Company USGS 61.1276 -146.3605 51.6 177 1 EpiSen 90 49.4 -1.4 4.05 0.836 0.0520
                  2 EpiSen 360 -26.1 0.7 2.90 0.442 0.0478
                  3 EpiSen UP 16.6 0.4 0.87 0.415 0.0293
8034 K2 1713 AK: Valdez; Civic Center USGS 61.1263 -146.3567 51.7 177 1 EpiSen 90 32.3 -1.4 3.40 0.774 0.0540
                  2 EpiSen 360 -22.0 0.6 2.11 0.440 0.0501
                  3 EpiSen UP 13.2 0.3 1.79 0.388 0.0283