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M6.9 earthquake, Tonga, 1989-03-11

MagnitudeM6.9mw

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Depth230 km

Time (UTC)1989-03-11 05:05

Rank in 19899 / 137among M6+

Rank since 19001887 / 14,458

Energy vs an M6×22approx.

127 km NW of Neiafu, Tonga · -17.77, -174.76

M6.5+ within 300 km (largest first)

1919 M8.1M8.1

2006 M8.0M8.0

1903 M8.0M8.0

1950 M7.8M7.8

1975 M7.8M7.8

2023 M7.6M7.6

2026 M7.5M7.5

1921 M7.4M7.4

1907 M7.3M7.3

1987 M7.3M7.3

1906 M7.2M7.2

1907 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1989-01-02	1989-01-02 01:52	108 km	61 km W of Neiafu, Tonga
M7.1 1988-10-08	1988-10-08 04:46	35 km	166 km E of Neiafu, Tonga
M6.4 1988-07-19	1988-07-19 01:00	137 km	76 km WNW of Pangai, Tonga
M6.2 1988-02-06	1988-02-06 21:30	126 km	26 km S of Hihifo, Tonga
M6.0 1988-01-29	1988-01-29 16:48	106 km	75 km NNW of Hihifo, Tonga
M6.2 1987-11-03	1987-11-03 08:15	88 km	138 km S of Hihifo, Tonga
M6.3 1987-10-08	1987-10-08 03:20	40 km	132 km E of Pangai, Tonga
M7.3 1987-10-06	1987-10-06 04:19	16 km	201 km ENE of Neiafu, Tonga
M6.5 1987-01-09	1987-01-09 08:01	33 km	231 km NW of Nuku‘alofa, Tonga
M6.5 1986-06-28	1986-06-28 05:03	211 km	151 km NW of Nuku‘alofa, 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.