© USGS
Earthquake Location
Date-Time:
Sunday, July 25, 2010 at 03:39:19 UTC

Saturday, July 24, 2010 at 04:39:19 PM at epicenter

Location:
15.032°S, 173.543°W

Depth:
41.2 km (25.6 miles) (poorly constrained)

Region:
TONGA

Distances:
237 km (147 miles) SW (234°) from APIA, Samoa

317 km (197 miles) WSW (254°) from PAGO PAGO, American Samoa

405 km (252 miles) N (7°) from Neiafu, Tonga

2572 km (1598 miles) W (273°) from PAPEETE, Tahiti, French Polynesia

Location Uncertainty:
horizontal +/- 8.5 km (5.3 miles); depth +/- 44.1 km (27.4 miles)

Parameters:
NST=187, Nph=187, Dmin=>999 km, Rmss=0.97 sec, Gp= 58°,
M-type=teleseismic moment magnitude (Mw), Version=7

Source:
USGS NEIC (WDCS-D)

Event ID:
us2010zdae