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M7.1 earthquake, China, 1999-04-08

MagnitudeM7.1mwc

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Depth566 km

Time (UTC)1999-04-08 13:10

Rank in 199910 / 135among M6+

Rank since 19001200 / 14,458

Energy vs an M6×45approx.

57 km ENE of Wangqing, China · 43.61, 130.35

M6.5+ within 300 km (largest first)

1917 M7.4M7.4

1994 M7.3M7.3

2002 M7.3M7.3

1999 M7.1M7.1

1957 M6.9M6.9

2010 M6.9M6.9

1946 M6.8M6.8

1908 M6.7M6.7

1905 M6.6M6.6

1973 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.3 1994-07-21	1994-07-21 18:36	471 km	46 km SSW of Vrangel’, Russia
M6.3 1990-05-11	1990-05-11 13:10	578 km	67 km SE of Rajin, North Korea
M6.1 1987-02-11	1987-02-11 17:42	499 km	8 km NW of Bol’shoy Kamen’, Russia
M6.1 1983-10-08	1983-10-08 07:45	558 km	35 km WNW of Dongning, China
M6.1 1979-08-16	1979-08-16 21:31	588 km	64 km SE of Rajin, North Korea
M6.5 1973-09-29	1973-09-29 00:44	575 km	61 km SSE of Ungsang-nodongjagu, North Korea
M6.0 1973-09-10	1973-09-10 07:43	532 km	24 km SW of Zarubino, Russia
M6.9 1957-01-03	1957-01-03 12:48	581 km	54 km WSW of Dongning, China
M6.8 1946-01-11	1946-01-11 01:33	581 km	40 km ESE of Chaihe, China
M7.4 1917-07-31	1917-07-31 03:23	460 km	7 km WSW of Rajin, North Korea

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.