2023-03-15 09:28:20 (M4.5) Tonga -18.0 -174.3 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.5 Earthquake - Tonga

Preliminary Report

Magnitude	4.5
Date-Time	Universal Time (UTC): 15 Mar 2023 09:28:20 Time near the Epicenter (1): 15 Mar 2023 22:28:20 Time in your area (1): 15 Mar 2023 01:28:20
Location	18.017S 174.311W
Depth	133 km
Distances	78.2 km (48.5 mi) NNW of Neiafu, Tonga 358.0 km (222.0 mi) NNE of Nuku�alofa, Tonga 537.1 km (333.0 mi) SSW of Apia, Samoa 559.8 km (347.1 mi) SW of T?funa, American Samoa 565.8 km (350.8 mi) SW of Pago Pago, American Samoa
Location Uncertainty	Horizontal: 10.4 km; Vertical 7.3 km
Parameters	Nph = 21; Dmin = 77.2 km; Rmss = 0.61 seconds; Gp = 98° Version =
Event ID	us 7000jk2b

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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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