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M6.6 earthquake, Indonesia, 1971-04-07

MagnitudeM6.6mw

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Depth27 km

Time (UTC)1971-04-07 04:59

Rank in 197135 / 143among M6+

Rank since 19003847 / 14,458

Energy vs an M6×8approx.

149 km NE of Tobelo, Indonesia · 2.50, 129.12

M6.5+ within 300 km (largest first)

1966 M7.7M7.7

1907 M7.5M7.5

1986 M7.5M7.5

1914 M7.5M7.5

1938 M7.2M7.2

1989 M7.1M7.1

2014 M7.1M7.1

1949 M7.0M7.0

1901 M7.0M7.0

1994 M7.0M7.0

2003 M7.0M7.0

2023 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1969-12-14	1969-12-14 02:42	30 km	139 km WNW of Tobelo, Indonesia
M6.7 1969-03-27	1969-03-27 12:41	60 km	250 km SE of Pondaguitan, Philippines
M6.0 1969-03-27	1969-03-27 04:46	24 km	231 km N of Tobelo, Indonesia
M6.2 1969-03-05	1969-03-05 13:52	33 km	256 km N of Tobelo, Indonesia
M6.2 1969-02-20	1969-02-20 16:58	34 km	206 km N of Tobelo, Indonesia
M6.4 1969-02-20	1969-02-20 10:30	48 km	187 km N of Tobelo, Indonesia
M6.4 1969-02-20	1969-02-20 09:55	44 km	199 km N of Tobelo, Indonesia
M6.4 1969-02-17	1969-02-17 00:43	29 km	220 km N of Tobelo, Indonesia
M6.1 1969-02-02	1969-02-02 01:38	49 km	231 km N of Tobelo, Indonesia
M6.4 1969-01-31	1969-01-31 00:44	48 km	271 km N of Tobelo, Indonesia

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.