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M6.6 earthquake, Tonga, 2003-07-27

MagnitudeM6.6mwb

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Depth213 km

Time (UTC)2003-07-27 02:04

Rank in 200334 / 154among M6+

Rank since 19003632 / 14,458

Energy vs an M6×8approx.

142 km W of Haveluloto, Tonga · -21.08, -176.59

M5.5+ within 100 km in the next 30 days

None

M6.5+ within 300 km (largest first)

2006 M8.0M8.0

1903 M8.0M8.0

1997 M7.8M7.8

1919 M7.8M7.8

1950 M7.8M7.8

1913 M7.8M7.8

2009 M7.6M7.6

1948 M7.5M7.5

1962 M7.5M7.5

1957 M7.4M7.4

1996 M7.4M7.4

2013 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 2003-07-03	2003-07-03 06:21	10 km	44 km E of ‘Ohonua, Tonga
M6.0 2003-01-09	2003-01-09 02:50	10 km	199 km NW of Nuku‘alofa, Tonga
M6.5 2003-01-04	2003-01-04 05:15	378 km	262 km WNW of Haveluloto, Tonga
M6.2 2002-10-22	2002-10-22 11:39	549 km	Fiji region
M6.2 2002-10-17	2002-10-17 04:23	628 km	Fiji region
M6.3 2002-10-04	2002-10-04 19:05	621 km	Fiji region
M6.0 2002-09-07	2002-09-07 08:14	210 km	129 km NW of Nuku‘alofa, Tonga
M6.0 2001-09-15	2001-09-15 15:04	10 km	117 km S of ‘Ohonua, Tonga
M6.5 2001-09-12	2001-09-12 08:48	608 km	Fiji region
M6.5 2001-07-04	2001-07-04 07:06	185 km	167 km WSW of Haveluloto, Tonga

Energy ratio uses the rule that one magnitude unit is about 32 times the energy. Magnitudes and locations are USGS values and can differ from national agencies. Older records are less complete and less precise.