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M6.7 earthquake, Japan, 1939-03-20

MagnitudeM6.7mw

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Depth25 km

Time (UTC)1939-03-20 03:22

Rank in 193920 / 80among M6+

Rank since 19003202 / 14,458

Energy vs an M6×10approx.

13 km SSE of Nobeoka, Japan · 32.48, 131.74

M6.5+ within 300 km (largest first)

1941 M8.0M8.0

1931 M7.9M7.9

1961 M7.5M7.5

1909 M7.5M7.5

1968 M7.5M7.5

1923 M7.4M7.4

1913 M7.2M7.2

1904 M7.1M7.1

2024 M7.1M7.1

1969 M7.1M7.1

1970 M7.0M7.0

2016 M7.0M7.0

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.3 1937-08-26	1937-08-26 18:54	35 km	41 km SE of Nichinan, Japan
M6.5 1937-01-05	1937-01-05 21:38	20 km	114 km ESE of Nichinan, Japan
M6.1 1934-09-12	1934-09-12 14:27	15 km	43 km NNW of Miyanoura, Japan
M6.2 1933-06-02	1933-06-02 07:38	35 km	51 km ENE of Nishinoomote, Japan
M7.9 1931-11-02	1931-11-02 10:03	35 km	58 km ESE of Takanabe, Japan
M6.3 1931-11-01	1931-11-01 18:53	35 km	40 km ESE of Takanabe, Japan
M6.9 1929-05-21	1929-05-21 16:35	35 km	31 km ESE of Miyazaki, Japan
M6.8 1928-06-03	1928-06-03 08:31	10 km	117 km S of Fukuech?, Japan
M6.1 1925-03-20	1925-03-20 12:19	15 km	179 km ESE of Nichinan, Japan
M6.3 1924-08-28	1924-08-28 23:50	15 km	17 km NNE of Tsukawaki, Japan

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.