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M6.5 earthquake, Bouvet Island, 1978-12-18

MagnitudeM6.5ms

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Depth10 km

Time (UTC)1978-12-18 10:15

Rank in 197830 / 90among M6+

Rank since 19004302 / 14,458

Energy vs an M6×6approx.

Bouvet Island region · -54.48, 2.07

M6.5+ within 300 km (largest first)

1920 M7.0M7.0

1971 M6.6M6.6

1964 M6.5M6.5

2003 M6.5M6.5

2017 M6.5M6.5

1978 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1971-12-07	1971-12-07 03:26	10 km	Bouvet Island region
M6.6 1971-10-14	1971-10-14 22:36	10 km	Bouvet Island region
M6.5 1964-12-14	1964-12-14 01:59	10 km	Bouvet Island region
M6.2 1960-07-13	1960-07-13 07:56	10 km	Bouvet Island region
M6.3 1960-01-02	1960-01-02 12:21	15 km	Bouvet Island region
M6.0 1953-12-16	1953-12-16 02:39	20 km	Bouvet Island region
M6.3 1953-09-20	1953-09-20 18:55	15 km	Bouvet Island region
M7.0 1920-09-04	1920-09-04 14:09	10 km	Bouvet Island 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.