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18 October, 2017

2017-10-18 12:00:59 (M6.0) Tonga -20.6 -173.9 (70fa9)

M6.0 - Tonga

Preliminary Earthquake Report
Magnitude 6.0
Date-Time
  • 18 Oct 2017 12:01:00 UTC
  • 18 Oct 2017 12:01:00 near epicenter
  • 18 Oct 2017 17:31:00 standard time in your timezone
Location 20.598S 173.895W
Depth 10 km
Distances
  • 99.1 km (61.5 mi) SSE of Pangai, Tonga
  • 148.6 km (92.1 mi) ENE of Nuku'alofa, Tonga
  • 770.7 km (477.8 mi) SSW of Tāfuna, American Samoa
  • 777.3 km (481.9 mi) SSW of Pago Pago, American Samoa
  • 782.1 km (484.9 mi) SSW of Apia, Samoa
Location Uncertainty Horizontal: 8.9 km; Vertical 1.8 km
Parameters Nph = 124; Dmin = 773.1 km; Rmss = 1.29 seconds; Gp = 31°
Version =
Event ID us 1000atnb

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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