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M6.5 earthquake, south of the Fiji Islands, 1991-10-18

MagnitudeM6.5mwb

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Depth198 km

Time (UTC)1991-10-18 17:22

Rank in 199141 / 137among M6+

Rank since 19004416 / 14,458

Energy vs an M6×6approx.

south of the Fiji Islands · -24.30, -177.56

M6.5+ within 300 km (largest first)

2007 M7.8M7.8

1975 M7.8M7.8

1997 M7.8M7.8

1963 M7.6M7.6

2013 M7.4M7.4

1970 M7.3M7.3

1977 M7.2M7.2

1960 M7.2M7.2

1982 M7.2M7.2

1992 M7.2M7.2

1996 M7.2M7.2

2023 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1991-04-18	1991-04-18 09:41	471 km	south of the Fiji Islands
M6.3 1990-07-22	1990-07-22 09:26	531 km	south of the Fiji Islands
M6.0 1990-04-09	1990-04-09 09:31	17 km	south of the Fiji Islands
M6.3 1989-05-08	1989-05-08 14:28	548 km	south of the Fiji Islands
M6.2 1987-03-13	1987-03-13 08:21	32 km	south of the Fiji Islands
M7.1 1986-06-16	1986-06-16 10:48	547 km	south of the Fiji Islands
M6.6 1984-09-28	1984-09-28 00:03	21 km	south of Tonga
M6.2 1984-03-12	1984-03-12 10:50	546 km	south of the Fiji Islands
M6.2 1984-01-19	1984-01-19 16:15	332 km	south of the Fiji Islands
M6.0 1983-09-16	1983-09-16 08:09	510 km	south of the Fiji Islands

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.