USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
April 23, 2004, Point MacKenzie, AK Earthquake (posted 03/25/2005)
ML 3.8, 04/23/2004, 04:47 UTC, 04/22/2004, 08:47 PM AKST, 61.425 N, 149.889 W, 41.3 km depth, Regional Network ID# ak00035997
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
8040			AK: Anchorage; Atwood Building	USGS	61.215	-149.893	23.4	181
	K2	2153	Basement, NW corner						1	EpiSen	90	-1.47	-0.06	0.42	0.041	0.0026
		2153	Basement, NW corner						2	EpiSen	360	2.66	0.11	0.44	0.052	0.0033
		2153	Basement, NW corner						3	EpiSen	UP	1.54	0.04	0.18	0.012	0.0016
		2153	Basement, SW corner						4	EpiSen	UP	-1.52	0.04	0.25	0.014	0.0012
		2153	Level 1, West side						5	EpiSen	360	2.81	0.12	0.47	0.049	0.0034
		2153	no sensor						6
		2153	Basement, NE corner						7	EpiSen	UP	1.43	0.04	0.15	0.012	0.0013
		2153	Level 1, East side						8	EpiSen	360	3.57	0.14	0.56	0.048	0.0038
		2153	Level 1, East side						9	EpiSen	90	-1.72	-0.08	0.45	0.043	0.0027
		2153	Level 2, West side						10	EpiSen	360	3.00	0.12	0.53	0.053	0.0035
		2153	Level 2, East side						11	EpiSen	360	-3.40	0.13	0.57	0.051	0.0032
		2153	Level 2, East side						12	EpiSen	90	-1.72	-0.08	0.48	0.052	0.0028
	K2	2154	Level 7, West side						1	EpiSen	360	2.67	0.11	0.69	0.050	0.0037
		2154	Level 7, East side						2	EpiSen	360	3.09	0.12	0.68	0.044	0.0033
		2154	Level 7, East side						3	EpiSen	90	-2.02	-0.12	0.64	0.068	0.0048
		2154	Level 8, West side						4	EpiSen	360	-2.80	0.11	0.61	0.044	0.0036
		2154	Level 8, East side						5	EpiSen	360	-3.03	0.12	0.61	0.040	0.0033
		2154	Level 8, East side						6	EpiSen	90	1.80	-0.10	0.52	0.068	0.0046
		2154	Level 13, West side						7	EpiSen	360	1.74	-0.06	0.48	0.026	0.0051
		2154	Level 13, East side						8	EpiSen	360	-1.98	-0.07	0.48	0.023	0.0048
		2154	Level 13, East side						9	EpiSen	90	-1.59	-0.08	0.47	0.038	0.0048
		2154	Level 14, West side						10	EpiSen	360	2.21	-0.08	0.62	0.026	0.0053
		2154	Level 14, East side						11	EpiSen	360	2.01	-0.08	0.58	0.027	0.0051
		2154	Level 14, East side						12	EpiSen	90	-1.54	-0.07	0.51	0.029	0.0048
	K2	2155	Level 19, West side						1	EpiSen	360	1.70	-0.07	0.23	0.057	0.0076
		2155	Level 19, East side						2	EpiSen	360	1.46	-0.07	0.20	0.059	0.0071
		2155	Level 19, East side						3	EpiSen	90	-1.41	-0.06	0.17	0.055	0.0058
		2155	Level 20, West side						4	EpiSen	360	1.98	-0.09	0.49	0.069	0.0084
		2155	Level 20, East side						5	EpiSen	360	2.00	-0.10	0.46	0.072	0.0082
		2155	Level 20, East side						6	EpiSen	90	-1.27	-0.08	0.44	0.074	0.0071
		2155	Roof, West side						7	EpiSen	360	3.73	0.16	0.88	0.087	0.0087
		2155	Roof, East side						8	EpiSen	360	3.62	0.16	0.95	0.091	0.0091
		2155	Roof, East side						9	EpiSen	90	-3.31	-0.15	0.84	0.095	0.0081