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M6.6 earthquake, Vanuatu, 1938-06-23

MagnitudeM6.6mw

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Depth45 km

Time (UTC)1938-06-23 12:55

Rank in 193839 / 149among M6+

Rank since 19003373 / 14,458

Energy vs an M6×8approx.

113 km S of Isangel, Vanuatu · -20.56, 169.41

M6.5+ within 300 km (largest first)

1920 M8.1M8.1

1901 M7.9M7.9

1910 M7.8M7.8

1995 M7.7M7.7

1913 M7.6M7.6

1928 M7.6M7.6

2018 M7.5M7.5

1998 M7.5M7.5

1992 M7.4M7.4

1961 M7.3M7.3

2003 M7.3M7.3

2008 M7.3M7.3

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.0 1938-05-30	1938-05-30 14:29	35 km	72 km SW of Isangel, Vanuatu
M6.2 1938-05-22	1938-05-22 08:22	35 km	62 km WSW of Isangel, Vanuatu
M6.1 1937-06-14	1937-06-14 13:10	15 km	155 km SSE of Isangel, Vanuatu
M6.0 1936-12-04	1936-12-04 22:26	35 km	250 km E of Tadine, New Caledonia
M6.1 1936-11-29	1936-11-29 08:26	25 km	263 km E of Tadine, New Caledonia
M6.0 1936-05-22	1936-05-22 23:21	35 km	215 km E of Tadine, New Caledonia
M6.3 1936-01-15	1936-01-15 14:43	15 km	275 km ESE of Tadine, New Caledonia
M6.5 1936-01-14	1936-01-14 17:41	25 km	79 km SSW of Port-Vila, Vanuatu
M7.1 1935-08-17	1935-08-17 01:44	20 km	southeast of the Loyalty Islands
M6.5 1935-01-17	1935-01-17 02:08	35 km	53 km SW of Isangel, 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.