Home › 2009 › Tonga

M6.6 earthquake, Tonga, 2009-08-30

MagnitudeM6.6mwc

This page is updated only once a day and is not an alert service. For current earthquake and tsunami information, check the Japan Meteorological Agency, the USGS and your local authorities.

Depth11 km

Time (UTC)2009-08-30 14:51

Rank in 200937 / 160among M6+

Rank since 19003688 / 14,458

Energy vs an M6×8approx.

154 km ENE of Hihifo, Tonga · -15.22, -172.57

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

None

M6.5+ within 300 km (largest first)

2009 M8.1M8.1

1917 M8.0M8.0

1975 M7.8M7.8

1981 M7.7M7.7

1977 M7.6M7.6

2023 M7.6M7.6

1995 M7.4M7.4

1984 M7.2M7.2

2000 M7.2M7.2

1957 M7.1M7.1

1978 M7.0M7.0

1913 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 2008-12-24	2008-12-24 09:11	9 km	249 km SE of Hihifo, Tonga
M6.0 2008-11-08	2008-11-08 07:49	121 km	93 km NNW of Hihifo, Tonga
M6.1 2008-08-19	2008-08-19 16:30	8 km	101 km NNE of Hihifo, Tonga
M6.0 2008-01-22	2008-01-22 07:55	6 km	182 km WNW of Hihifo, Tonga
M6.2 2007-12-13	2007-12-13 15:51	17 km	147 km SSW of Lotofag?, Samoa
M6.9 2006-09-28	2006-09-28 06:22	28 km	201 km ESE of Hihifo, Tonga
M6.0 2006-07-07	2006-07-07 07:26	35 km	81 km NNE of Hihifo, Tonga
M6.0 2006-04-30	2006-04-30 19:33	10 km	88 km ENE of Hihifo, Tonga
M6.2 2005-05-18	2005-05-18 10:27	10 km	92 km NE of Hihifo, Tonga
M6.0 2004-11-21	2004-11-21 11:07	256 km	133 km WNW of Hihifo, 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.