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M7.8 earthquake, Chile, 1971-07-09

MagnitudeM7.8mw

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Depth61 km

Time (UTC)1971-07-09 03:03

Rank in 19713 / 143among M6+

Rank since 1900189 / 14,458

Energy vs an M6×501approx.

19 km NNE of Hacienda La Calera, Chile · -32.62, -71.17

M6.5+ within 300 km (largest first)

2015 M8.3M8.3

1906 M8.2M8.2

1943 M8.1M8.1

1985 M8.0M8.0

1971 M7.8M7.8

1928 M7.7M7.7

1965 M7.4M7.4

1985 M7.4M7.4

1931 M7.2M7.2

1981 M7.2M7.2

1985 M7.2M7.2

1997 M7.1M7.1

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.4 1970-12-08	1970-12-08 19:30	49 km	29 km SW of Monte Patria, Chile
M6.2 1969-04-26	1969-04-26 06:02	32 km	5 km NW of Ovalle, Chile
M6.0 1969-04-26	1969-04-26 05:58	38 km	35 km WSW of Ovalle, Chile
M6.2 1967-09-26	1967-09-26 16:11	49 km	19 km SSW of Coquimbo, Chile
M6.1 1966-11-10	1966-11-10 03:02	113 km	34 km SSE of Nueve de Julio, Argentina
M6.1 1966-04-10	1966-04-10 16:36	60 km	21 km N of Illapel, Chile
M7.4 1965-03-28	1965-03-28 16:33	68 km	7 km SSE of La Ligua, Chile
M6.2 1965-03-22	1965-03-22 22:56	47 km	50 km SW of Illapel, Chile
M6.8 1958-09-04	1958-09-04 21:51	15 km	62 km ESE of Puente Alto, Chile
M6.6 1956-06-09	1956-06-09 10:08	24 km	39 km NW of Ovalle, 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.