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M6.5 earthquake, Tonga, 1987-01-09

MagnitudeM6.5mw

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Depth33 km

Time (UTC)1987-01-09 08:01

Rank in 198747 / 166among M6+

Rank since 19004371 / 14,458

Energy vs an M6×6approx.

231 km NW of Nuku‘alofa, Tonga · -19.47, -176.54

M6.5+ within 300 km (largest first)

2018 M8.2M8.2

2006 M8.0M8.0

1903 M8.0M8.0

1997 M7.8M7.8

1919 M7.8M7.8

1950 M7.8M7.8

1909 M7.6M7.6

1994 M7.6M7.6

2026 M7.5M7.5

1962 M7.5M7.5

1957 M7.4M7.4

1996 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1986-12-30	1986-12-30 15:32	24 km	71 km SSE of Pangai, Tonga
M7.2 1986-10-30	1986-10-30 01:28	188 km	157 km WSW of Haveluloto, Tonga
M6.2 1986-08-18	1986-08-18 01:59	20 km	76 km SSE of Pangai, Tonga
M6.5 1986-06-28	1986-06-28 05:03	211 km	151 km NW of Nuku‘alofa, Tonga
M6.0 1986-04-01	1986-04-01 10:13	540 km	227 km E of Levuka, Fiji
M6.3 1985-10-12	1985-10-12 02:12	155 km	133 km WSW of Haveluloto, Tonga
M6.0 1985-02-03	1985-02-03 04:50	56 km	85 km SSE of Pangai, Tonga
M6.5 1984-11-22	1984-11-22 17:07	646 km	280 km E of Levuka, Fiji
M6.2 1984-11-17	1984-11-17 22:43	33 km	183 km W of Neiafu, Tonga
M6.7 1984-11-17	1984-11-17 13:45	451 km	Fiji region

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.