2017-08-21 21:12:23 UPDATED: (M5.4) Samoa Islands region -15.5 -171.6 (70fa9)

M5.4 - Samoa Islands region

Preliminary Earthquake Report

Magnitude	5.4
Date-Time	21 Aug 2017 21:12:23 UTC 21 Aug 2017 21:12:23 near epicenter 22 Aug 2017 02:42:23 standard time in your timezone
Location	15.475S 171.565W
Depth	10 km
Distances	149.3 km (92.6 mi) SW of Vailoatai, American Samoa 155.5 km (96.4 mi) SW of Tāfuna, American Samoa 161.8 km (100.3 mi) SW of Pago Pago, American Samoa 170.6 km (105.8 mi) S of Samamea, Samoa 183.0 km (113.4 mi) S of Apia, Samoa
Location Uncertainty	Horizontal: 7.2 km; Vertical 1.8 km
Parameters	Nph = 89; Dmin = 174.6 km; Rmss = 0.87 seconds; Gp = 72° Version =
Event ID	us 2000aaei

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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