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M7.7 earthquake, Vanuatu, 1965-05-20

MagnitudeM7.7mw

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Depth50 km

Time (UTC)1965-05-20 00:40

Rank in 19654 / 131among M6+

Rank since 1900257 / 14,458

Energy vs an M6×355approx.

45 km NNE of Port-Olry, Vanuatu · -14.65, 167.20

M6.5+ within 300 km (largest first)

1980 M7.9M7.9

1957 M7.8M7.8

2009 M7.8M7.8

1997 M7.7M7.7

2009 M7.7M7.7

1965 M7.7M7.7

1965 M7.6M7.6

1999 M7.5M7.5

1973 M7.5M7.5

1980 M7.5M7.5

1910 M7.4M7.4

1965 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.7 1965-01-10	1965-01-10 13:36	35 km	108 km WNW of Sola, Vanuatu
M7.2 1964-07-09	1964-07-09 16:39	130 km	54 km E of Luganville, Vanuatu
M6.3 1964-01-22	1964-01-22 23:59	16 km	170 km W of Sola, Vanuatu
M6.1 1962-11-11	1962-11-11 16:09	47 km	161 km NW of Sola, Vanuatu
M6.6 1962-05-22	1962-05-22 08:06	114 km	185 km SSE of Lata, Solomon Islands
M6.0 1961-06-29	1961-06-29 09:22	15 km	154 km W of Sola, Vanuatu
M6.8 1961-01-22	1961-01-22 03:24	15 km	180 km S of Lata, Solomon Islands
M6.1 1960-12-11	1960-12-11 18:53	65 km	10 km S of Luganville, Vanuatu
M6.1 1960-09-01	1960-09-01 10:35	30 km	54 km SSE of Lakatoro, Vanuatu
M6.1 1960-09-01	1960-09-01 09:28	30 km	51 km SSE of Lakatoro, 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.