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M6.9 earthquake, Argentina, 1983-12-21

MagnitudeM6.9mw

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Depth602 km

Time (UTC)1983-12-21 12:05

Rank in 198320 / 136among M6+

Rank since 19001872 / 14,458

Energy vs an M6×22approx.

38 km SE of Suncho Corral, Argentina · -28.19, -63.17

M6.5+ within 300 km (largest first)

1912 M7.3M7.3

1991 M7.3M7.3

1962 M7.2M7.2

1950 M7.1M7.1

1916 M7.1M7.1

2000 M7.0M7.0

2011 M7.0M7.0

1994 M6.9M6.9

1983 M6.9M6.9

2006 M6.8M6.8

2023 M6.8M6.8

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1977-10-22	1977-10-22 17:57	614 km	45 km E of Suncho Corral, Argentina
M6.7 1967-09-09	1967-09-09 10:06	580 km	39 km NNE of Suncho Corral, Argentina
M6.2 1967-01-17	1967-01-17 01:07	591 km	34 km S of El Hoyo, Argentina
M6.3 1966-12-20	1966-12-20 12:26	578 km	57 km SSE of Taco Pozo, Argentina
M6.3 1964-12-09	1964-12-09 13:35	583 km	41 km S of El Hoyo, Argentina
M7.2 1962-12-08	1962-12-08 21:27	589 km	21 km SSE of Taco Pozo, Argentina
M6.4 1962-09-29	1962-09-29 15:17	573 km	10 km SW of El Hoyo, Argentina
M7.1 1950-08-14	1950-08-14 22:51	610 km	44 km WNW of Quimilí, Argentina
M6.0 1931-04-03	1931-04-03 05:18	15 km	27 km ESE of Burruyacú, Argentina
M7.1 1916-06-21	1916-06-21 21:32	600 km	48 km NNW of Suncho Corral, Argentina

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.