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M6.6 earthquake, Chile, 2015-09-21

MagnitudeM6.6mww

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Depth35 km

Time (UTC)2015-09-21 17:40

Rank in 201545 / 146among M6+

Rank since 19003741 / 14,458

Energy vs an M6×8approx.

22 km WSW of Illapel, Chile · -31.73, -71.38

M5.5+ within 100 km in the next 30 days

Event	Time (UTC)	Depth	Place
M5.5 2015-09-21	2015-09-21 18:36	27 km	77 km SW of Ovalle, Chile
M5.6 2015-09-21	2015-09-21 19:56	28 km	47 km WSW of Illapel, Chile
M6.0 2015-09-22	2015-09-22 07:13	58 km	22 km NNW of Illapel, Chile
M5.5 2015-10-09	2015-10-09 18:27	35 km	54 km WSW of Illapel, Chile
M5.6 2015-10-12	2015-10-12 03:15	21 km	79 km NW of Illapel, Chile

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

1965 M7.4M7.4

1985 M7.4M7.4

1931 M7.2M7.2

1981 M7.2M7.2

1985 M7.2M7.2

1997 M7.1M7.1

2010 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 2015-09-21	2015-09-21 05:39	30 km	54 km W of Illapel, Chile
M6.2 2015-09-19	2015-09-19 12:52	18 km	79 km W of La Ligua, Chile
M6.1 2015-09-19	2015-09-19 05:06	6 km	79 km WNW of Coquimbo, Chile
M6.2 2015-09-18	2015-09-18 09:10	8 km	92 km NW of Valparaíso, Chile
M6.7 2015-09-17	2015-09-17 04:10	23 km	61 km WNW of Illapel, Chile
M6.5 2015-09-17	2015-09-17 03:55	27 km	54 km WNW of Illapel, Chile
M6.4 2015-09-17	2015-09-17 01:41	42 km	70 km SW of Ovalle, Chile
M7.0 2015-09-16	2015-09-16 23:18	28 km	25 km WNW of Illapel, Chile
M6.1 2015-09-16	2015-09-16 23:16	35 km	71 km W of Illapel, Chile
M6.1 2015-09-16	2015-09-16 23:03	19 km	55 km WSW of Illapel, 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.