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M6.6 earthquake, Japan, 1987-01-09

MagnitudeM6.6mw

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Depth68 km

Time (UTC)1987-01-09 06:14

Rank in 198739 / 166among M6+

Rank since 19003504 / 14,458

Energy vs an M6×8approx.

35 km NW of Miyako, Japan · 39.90, 141.68

M6.5+ within 300 km (largest first)

2011 M9.1M9.1

1933 M8.4M8.4

1968 M8.2M8.2

2003 M8.2M8.2

1960 M8.0M8.0

1931 M7.9M7.9

1968 M7.9M7.9

1994 M7.8M7.8

1938 M7.7M7.7

1978 M7.7M7.7

1905 M7.7M7.7

1964 M7.6M7.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1986-11-30	1986-11-30 20:15	37 km	31 km SE of ?funato, Japan
M6.5 1985-08-12	1985-08-12 03:49	52 km	75 km ENE of Namie, Japan
M6.4 1985-03-28	1985-03-28 16:07	166 km	9 km N of Takanosu, Japan
M6.0 1983-11-30	1983-11-30 02:56	57 km	69 km SSE of Shizunai-furukawach?, Japan
M6.7 1983-06-21	1983-06-21 06:25	10 km	122 km WNW of Shimokizukuri, Japan
M6.3 1983-06-09	1983-06-09 13:04	28 km	85 km W of Noshiro, Japan
M6.0 1983-06-09	1983-06-09 12:49	31 km	85 km W of Noshiro, Japan
M7.4 1983-05-26	1983-05-26 02:59	24 km	83 km WNW of Noshiro, Japan
M6.5 1983-04-30	1983-04-30 14:03	30 km	150 km SE of Shizunai-furukawach?, Japan
M6.7 1982-03-21	1982-03-21 02:32	44 km	19 km S of Shizunai-furukawach?, 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.