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M7.4 earthquake, Chile, 1939-04-18

MagnitudeM7.4mw

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Depth35 km

Time (UTC)1939-04-18 06:22

Rank in 19398 / 80among M6+

Rank since 1900544 / 14,458

Energy vs an M6×135approx.

Atacama, Chile · -27.22, -70.88

M6.5+ within 300 km (largest first)

1922 M8.5M8.5

1918 M8.0M8.0

1966 M7.7M7.7

1936 M7.5M7.5

1909 M7.5M7.5

1939 M7.4M7.4

1983 M7.4M7.4

1960 M7.3M7.3

1988 M7.2M7.2

1920 M7.0M7.0

1904 M7.0M7.0

1965 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1939-01-18	1939-01-18 01:44	35 km	33 km NW of La Serena, Chile
M6.5 1937-03-14	1937-03-14 11:55	15 km	65 km NNW of Taltal, Chile
M7.5 1936-07-13	1936-07-13 11:12	35 km	83 km NNE of Taltal, Chile
M6.2 1935-07-09	1935-07-09 12:21	35 km	102 km WSW of Copiapó, Chile
M6.3 1932-04-26	1932-04-26 07:54	60 km	63 km ESE of Taltal, Chile
M6.0 1931-06-29	1931-06-29 20:24	25 km	39 km NE of La Serena, Chile
M6.1 1931-05-20	1931-05-20 21:53	15 km	152 km NW of Coquimbo, Chile
M6.5 1927-02-28	1927-02-28 14:07	35 km	35 km WSW of Vallenar, Chile
M6.3 1925-05-15	1925-05-15 11:57	30 km	7 km SSE of Taltal, Chile
M6.8 1924-01-29	1924-01-29 01:54	45 km	43 km N of Vallenar, Chile

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.