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M7.0 earthquake, Tonga, 1991-06-09

MagnitudeM7.0mw

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Depth266 km

Time (UTC)1991-06-09 07:45

Rank in 199114 / 137among M6+

Rank since 19001514 / 14,458

Energy vs an M6×32approx.

144 km NW of Nuku‘alofa, Tonga · -20.25, -176.22

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

1948 M7.5M7.5

2026 M7.5M7.5

1962 M7.5M7.5

1957 M7.4M7.4

1996 M7.4M7.4

1937 M7.3M7.3

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1991-03-03	1991-03-03 15:20	16 km	60 km S of ‘Ohonua, Tonga
M6.0 1991-01-01	1991-01-01 17:28	29 km	84 km E of ‘Ohonua, Tonga
M6.8 1990-12-21	1990-12-21 05:29	13 km	74 km SSE of Pangai, Tonga
M6.0 1990-09-08	1990-09-08 20:31	33 km	83 km SSE of Pangai, Tonga
M6.9 1990-06-23	1990-06-23 21:38	180 km	139 km WSW of Haveluloto, Tonga
M6.3 1990-05-20	1990-05-20 07:32	232 km	135 km WNW of Neiafu, Tonga
M6.3 1989-04-16	1989-04-16 19:48	610 km	Fiji region
M6.0 1989-03-30	1989-03-30 20:39	230 km	158 km W of Pangai, Tonga
M6.2 1989-01-02	1989-01-02 01:52	108 km	61 km W of Neiafu, Tonga
M6.4 1988-07-19	1988-07-19 01:00	137 km	76 km WNW of Pangai, 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.