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M6.7 earthquake, Indonesia, 1921-04-01

MagnitudeM6.7mw

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Depth35 km

Time (UTC)1921-04-01 04:06

Rank in 192115 / 61among M6+

Rank since 19002707 / 14,458

Energy vs an M6×12approx.

68 km SE of Singkil, Indonesia · 1.79, 98.16

M6.5+ within 300 km (largest first)

2004 M9.1M9.1

2005 M8.6M8.6

2010 M7.8M7.8

1935 M7.6M7.6

2002 M7.4M7.4

2008 M7.4M7.4

2023 M7.1M7.1

1984 M7.1M7.1

1936 M7.1M7.1

1998 M7.0M7.0

1976 M7.0M7.0

1946 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1920-03-17	1920-03-17 18:37	15 km	134 km SW of Sinabang, Indonesia
M6.2 1918-02-12	1918-02-12 03:00	15 km	247 km SSW of Singkil, Indonesia
M6.9 1917-11-04	1917-11-04 12:03	15 km	28 km NNE of Sinabang, Indonesia
M6.1 1916-07-27	1916-07-27 11:52	15 km	59 km W of Kabanjahe, Indonesia
M6.1 1915-12-19	1915-12-19 20:13	35 km	33 km SW of Sinabang, Indonesia
M6.2 1915-04-03	1915-04-03 13:42	35 km	126 km SW of Singkil, Indonesia
M6.7 1914-05-29	1914-05-29 04:47	35 km	214 km SW of Sibolga, Indonesia
M6.2 1913-10-29	1913-10-29 04:32	25 km	251 km SSW of Singkil, Indonesia
M6.8 1908-11-02	1908-11-02 05:15	25 km	60 km W of Sinabang, 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.