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M7.7 earthquake, Chile, 1928-12-01

MagnitudeM7.7mw

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Depth35 km

Time (UTC)1928-12-01 04:06

Rank in 19283 / 119among M6+

Rank since 1900240 / 14,458

Energy vs an M6×355approx.

30 km NNE of Constitución, Chile · -35.08, -72.27

M6.5+ within 300 km (largest first)

2010 M8.8M8.8

1985 M8.0M8.0

1939 M7.8M7.8

1971 M7.8M7.8

1928 M7.7M7.7

1914 M7.7M7.7

1953 M7.5M7.5

1985 M7.4M7.4

1928 M7.2M7.2

1931 M7.2M7.2

1981 M7.2M7.2

1985 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1928-05-01	1928-05-01 00:11	35 km	17 km S of Constitución, Chile
M6.3 1926-09-06	1926-09-06 00:16	15 km	210 km WNW of Constitución, Chile
M6.0 1925-08-11	1925-08-11 19:41	35 km	22 km S of Constitución, Chile
M6.1 1922-05-21	1922-05-21 15:40	15 km	187 km NW of Constitución, Chile
M6.5 1914-01-30	1914-01-30 07:35	15 km	99 km SE of Rengo, Chile
M7.7 1914-01-30	1914-01-30 03:36	15 km	103 km NW of Constitución, 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.