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M6.8 earthquake, New Zealand, 1984-12-30

MagnitudeM6.8mw

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Depth39 km

Time (UTC)1984-12-30 21:36

Rank in 198422 / 133among M6+

Rank since 19002326 / 14,458

Energy vs an M6×16approx.

150 km N of Opotiki, New Zealand · -36.66, 177.51

M6.5+ within 300 km (largest first)

1947 M7.7M7.7

1947 M7.6M7.6

2021 M7.3M7.3

1995 M7.1M7.1

1914 M7.0M7.0

2016 M7.0M7.0

1932 M6.9M6.9

1984 M6.8M6.8

1970 M6.8M6.8

2001 M6.7M6.7

2014 M6.7M6.7

1914 M6.7M6.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1984-03-08	1984-03-08 00:40	88 km	27 km SSW of Opotiki, New Zealand
M6.2 1974-02-28	1974-02-28 13:59	15 km	92 km ENE of Tairua, New Zealand
M6.3 1970-07-27	1970-07-27 12:31	95 km	26 km ENE of Opotiki, New Zealand
M6.8 1970-01-08	1970-01-08 17:12	199 km	south of the Kermadec Islands
M6.0 1965-12-08	1965-12-08 18:05	175 km	93 km NNE of Opotiki, New Zealand
M6.1 1965-06-15	1965-06-15 09:20	70 km	23 km ENE of Opotiki, New Zealand
M6.2 1956-12-28	1956-12-28 14:24	35 km	45 km NW of Gisborne, New Zealand
M6.2 1956-01-30	1956-01-30 08:43	15 km	75 km NNE of Whakatane, New Zealand
M6.1 1951-04-23	1951-04-23 06:50	20 km	100 km NE of Opotiki, New Zealand
M7.6 1947-05-17	1947-05-17 07:06	25 km	82 km ENE of Gisborne, New Zealand

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.