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M7.3 earthquake, Vanuatu, 1961-07-23

MagnitudeM7.3mw

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Depth25 km

Time (UTC)1961-07-23 21:51

Rank in 19613 / 104among M6+

Rank since 1900662 / 14,458

Energy vs an M6×99approx.

63 km S of Port-Vila, Vanuatu · -18.31, 168.29

M6.5+ within 300 km (largest first)

1920 M8.1M8.1

1950 M7.9M7.9

1910 M7.8M7.8

1913 M7.6M7.6

1999 M7.5M7.5

1910 M7.4M7.4

1965 M7.4M7.4

1992 M7.4M7.4

1961 M7.3M7.3

2008 M7.3M7.3

2010 M7.3M7.3

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1961-07-23	1961-07-23 14:03	25 km	Vanuatu
M6.2 1961-07-08	1961-07-08 15:34	35 km	79 km SSW of Isangel, Vanuatu
M6.1 1961-07-08	1961-07-08 02:35	35 km	90 km SSW of Isangel, Vanuatu
M6.6 1961-07-06	1961-07-06 22:09	35 km	119 km S of Isangel, 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
M6.0 1960-07-29	1960-07-29 00:24	15 km	87 km ESE of Isangel, Vanuatu
M6.1 1960-06-09	1960-06-09 11:24	15 km	50 km S of Port-Vila, Vanuatu
M6.7 1960-03-29	1960-03-29 06:31	10 km	96 km S of Lakatoro, Vanuatu
M6.0 1959-09-30	1959-09-30 20:26	35 km	40 km SSW of Port-Vila, 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.