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M6.6 earthquake, Taiwan, 1951-10-23

MagnitudeM6.6mw

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Depth25 km

Time (UTC)1951-10-23 01:19

Rank in 195122 / 135among M6+

Rank since 19003946 / 14,458

Energy vs an M6×7approx.

22 km WSW of Hualien City, Taiwan · 23.87, 121.42

M6.5+ within 300 km (largest first)

1920 M8.2M8.2

1951 M7.8M7.8

1999 M7.7M7.7

1922 M7.7M7.7

1966 M7.5M7.5

1951 M7.5M7.5

1919 M7.4M7.4

1978 M7.4M7.4

1986 M7.4M7.4

2024 M7.4M7.4

1951 M7.3M7.3

1972 M7.3M7.3

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.3 1951-10-22	1951-10-22 20:51	25 km	51 km S of Hualien City, Taiwan
M6.0 1951-10-22	1951-10-22 20:24	25 km	52 km NE of Hualien City, Taiwan
M6.2 1951-10-22	1951-10-22 18:42	25 km	69 km SSW of Hualien City, Taiwan
M6.5 1951-10-22	1951-10-22 16:07	25 km	13 km WNW of Hualien City, Taiwan
M6.5 1951-10-22	1951-10-22 15:29	20 km	Taiwan
M6.5 1951-10-22	1951-10-22 14:46	20 km	29 km WSW of Hualien City, Taiwan
M6.3 1951-10-22	1951-10-22 13:01	25 km	28 km SSW of Hualien City, Taiwan
M6.6 1951-10-22	1951-10-22 12:48	30 km	27 km NNE of Hualien City, Taiwan
M6.5 1951-10-22	1951-10-22 11:11	25 km	10 km SSW of Hualien City, Taiwan
M6.2 1951-10-22	1951-10-22 10:25	25 km	102 km SE of Hualien City, Taiwan

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.