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M6.6 earthquake, Brazil, 1985-05-01

MagnitudeM6.6mw

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Depth600 km

Time (UTC)1985-05-01 13:27

Rank in 198527 / 160among M6+

Rank since 19003494 / 14,458

Energy vs an M6×8approx.

125 km SSW of Tarauacá, Brazil · -9.20, -71.23

M6.5+ within 300 km (largest first)

1963 M7.6M7.6

1961 M7.6M7.6

2015 M7.6M7.6

1911 M7.4M7.4

1961 M7.2M7.2

2018 M7.1M7.1

1989 M7.1M7.1

2003 M7.1M7.1

1967 M7.0M7.0

1990 M7.0M7.0

2002 M6.9M6.9

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1983-06-02	1983-06-02 20:12	599 km	158 km SSW of Tarauacá, Brazil
M6.1 1972-01-21	1972-01-21 19:18	564 km	129 km NE of Cruzeiro do Sul, Brazil
M6.4 1972-01-12	1972-01-12 09:59	568 km	129 km NE of Cruzeiro do Sul, Brazil
M7.0 1967-02-15	1967-02-15 16:11	600 km	124 km SSW of Tarauacá, Brazil
M6.7 1965-11-03	1965-11-03 01:39	594 km	104 km SSW of Tarauacá, Brazil
M6.3 1963-11-10	1963-11-10 01:00	594 km	100 km SSW of Tarauacá, Brazil
M7.6 1963-11-09	1963-11-09 21:15	591 km	132 km SW of Tarauacá, Brazil
M7.2 1961-08-31	1961-08-31 01:48	598 km	149 km WNW of Iñapari, Peru
M7.6 1961-08-19	1961-08-19 05:09	612 km	132 km W of Iñapari, Peru
M6.8 1950-07-09	1950-07-09 04:40	646 km	23 km WSW of Tarauacá, Brazil

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.