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M6.6 earthquake, Vanuatu, 1971-10-28

MagnitudeM6.6mw

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Depth20 km

Time (UTC)1971-10-28 18:00

Rank in 197132 / 143among M6+

Rank since 19003276 / 14,458

Energy vs an M6×9approx.

129 km WNW of Sola, Vanuatu · -13.42, 166.45

M6.5+ within 300 km (largest first)

1980 M7.9M7.9

1957 M7.8M7.8

1966 M7.8M7.8

2009 M7.8M7.8

1934 M7.7M7.7

1965 M7.7M7.7

1997 M7.7M7.7

2009 M7.7M7.7

1965 M7.6M7.6

1973 M7.5M7.5

1980 M7.5M7.5

1972 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.8 1971-10-27	1971-10-27 17:58	52 km	16 km ESE of Luganville, Vanuatu
M6.2 1971-10-25	1971-10-25 03:46	56 km	148 km NW of Sola, Vanuatu
M6.3 1970-09-29	1970-09-29 06:03	50 km	104 km WNW of Sola, Vanuatu
M6.4 1970-08-12	1970-08-12 01:39	35 km	91 km W of Sola, Vanuatu
M6.0 1970-08-12	1970-08-12 00:40	35 km	96 km W of Sola, Vanuatu
M6.9 1970-08-11	1970-08-11 10:22	20 km	97 km WSW of Sola, Vanuatu
M6.4 1970-08-10	1970-08-10 15:15	20 km	89 km W of Sola, Vanuatu
M6.2 1970-05-29	1970-05-29 19:02	63 km	121 km SE of Lata, Solomon Islands
M6.5 1970-01-26	1970-01-26 10:01	36 km	176 km NW of Sola, Vanuatu
M6.3 1969-12-10	1969-12-10 19:54	26 km	13 km N of Port-Olry, Vanuatu

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.