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M7.1 earthquake, Japan, 1917-07-29

MagnitudeM7.1mw

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Depth15 km

Time (UTC)1917-07-29 14:32

Rank in 191712 / 87among M6+

Rank since 19001076 / 14,458

Energy vs an M6×46approx.

123 km SE of Honchō, Japan · 41.21, 143.75

M6.5+ within 300 km (largest first)

1933 M8.4M8.4

1968 M8.2M8.2

2003 M8.2M8.2

1952 M8.1M8.1

1960 M8.0M8.0

1931 M7.9M7.9

1968 M7.9M7.9

1994 M7.8M7.8

1919 M7.7M7.7

1973 M7.7M7.7

1915 M7.6M7.6

1993 M7.6M7.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1917-04-21	1917-04-21 03:52	15 km	182 km SSE of Hiroo, Japan
M6.9 1917-03-15	1917-03-15 00:14	15 km	148 km E of Yamada, Japan
M6.2 1916-11-24	1916-11-24 04:03	15 km	78 km E of Miyako, Japan
M6.3 1916-07-16	1916-07-16 18:14	35 km	100 km E of Miyako, Japan
M6.1 1916-03-18	1916-03-18 00:55	60 km	102 km S of Kushiro, Japan
M6.3 1915-12-06	1915-12-06 20:58	35 km	72 km SSW of Kushiro, Japan
M6.8 1915-11-18	1915-11-18 04:02	35 km	62 km SE of Kamaishi, Japan
M6.3 1915-11-04	1915-11-04 03:12	35 km	93 km ESE of Kamaishi, Japan
M6.8 1915-11-01	1915-11-01 09:00	35 km	79 km ESE of Kamaishi, Japan
M7.6 1915-11-01	1915-11-01 07:23	30 km	119 km SE of Kamaishi, 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.