TONGA REGION RECENT QUAKES

4.7 Mb - SOUTH OF TONGA
Preliminary Earthquake Report
Magnitude
4.7 Mb
Date-Time
23 Sep 2008 15:20:09 UTC
24 Sep 2008 03:20:09 near epicenter
23 Sep 2008 09:20:09 standard time in your timezone
Location
24.298S 175.426W
Depth
35 km
Distances
351 km (218 miles) S (183 degrees) of NUKU'ALOFA, Tonga
2784 km (1730 miles) WSW (250 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty
Horizontal: 17.6 km; Vertical
Parameters
Nph = 15; Dmin = 994.1 km; Rmss = 1.12 seconds; Gp = 147°M-type = Mb; Version = Q
Event ID
US 2008xha8

4.7 Mb - SOUTH OF TONGA
Preliminary Earthquake Report
Magnitude
4.7 Mb
Date-Time
22 Sep 2008 13:10:45 UTC
23 Sep 2008 01:10:45 near epicenter
22 Sep 2008 07:10:45 standard time in your timezone
Location
24.250S 175.906W
Depth
35 km
Distances
352 km (218 miles) S (191 degrees) of NUKU'ALOFA, Tonga
2831 km (1759 miles) WSW (250 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty
Horizontal: 16.0 km; Vertical
Parameters
Nph = 23; Dmin = 956.9 km; Rmss = 1.15 seconds; Gp = 133°M-type = Mb; Version = Q
Event ID
US 2008xgaz

4.6 Mb - TONGA
Preliminary Earthquake Report
Magnitude
4.6 Mb
Date-Time
21 Sep 2008 19:19:20 UTC
22 Sep 2008 08:19:20 near epicenter
21 Sep 2008 13:19:20 standard time in your timezone
Location
15.632S 174.823W
Depth
271 km
Distances
347 km (216 miles) NNW (345 degrees) of Neiafu, Tonga
388 km (241 miles) WSW (238 degrees) of APIA, Samoa
468 km (291 miles) WSW (251 degrees) of PAGO PAGO, American Samoa
2698 km (1676 miles) W (271 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty
Horizontal: 17.2 km; Vertical 9.9 km
Parameters
Nph = 41; Dmin = 379.4 km; Rmss = 0.88 seconds; Gp = 133°M-type = Mb; Version = Q
Event ID
US 2008xfbi

5.2 Mb - TONGA
Preliminary Earthquake Report
Magnitude
5.2 Mb
Date-Time
21 Sep 2008 06:36:24 UTC
21 Sep 2008 19:36:24 near epicenter
21 Sep 2008 00:36:24 standard time in your timezone
Location
16.170S 173.881W
Depth
74 km
Distances
276 km (172 miles) N (2 degrees) of Neiafu, Tonga
349 km (217 miles) SW (221 degrees) of APIA, Samoa
402 km (250 miles) WSW (238 degrees) of PAGO PAGO, American Samoa
2590 km (1610 miles) W (270 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty
Horizontal: 28.2 km; Vertical 20.5 km
Parameters
Nph = 112; Dmin = 337.3 km; Rmss = 0.62 seconds; Gp = 183°M-type = Mb; Version = 6
Event ID
US 2008xfaf

4.8 Mb - SOUTH OF TONGA
Preliminary Earthquake Report
Magnitude
4.8 Mb
Date-Time
19 Sep 2008 17:29:53 UTC
20 Sep 2008 05:29:53 near epicenter
19 Sep 2008 11:29:53 standard time in your timezone
Location
24.465S 175.846W
Depth
49 km
Distances
374 km (232 miles) S (190 degrees) of NUKU'ALOFA, Tonga
2830 km (1758 miles) WSW (250 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty
Horizontal: 20.5 km; Vertical 27.4 km
Parameters
Nph = 24; Dmin = 978.7 km; Rmss = 1.28 seconds; Gp = 147°M-type = Mb; Version = 6
Event ID
US 2008xda5
For updates, maps, and technical information, see: Event Page or U.S.G.S. Earthquake Hazards Program
National Earthquake Information CenterU.S. Geological Surveyhttp://neic.usgs.gov/

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