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M6.6 earthquake, Yemen, 1959-12-21

MagnitudeM6.6mw

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Depth15 km

Time (UTC)1959-12-21 11:19

Rank in 195922 / 106among M6+

Rank since 19003425 / 14,458

Energy vs an M6×8approx.

186 km NNW of Kilmia, Yemen · 13.79, 51.73

M6.5+ within 300 km (largest first)

2006 M6.6M6.6

1959 M6.6M6.6

1970 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1949-12-20	1949-12-20 00:34	15 km	200 km N of Qalans?yah, Yemen
M6.1 1928-09-18	1928-09-18 19:52	15 km	157 km NNW of Kilmia, Yemen
M6.1 1924-04-20	1924-04-20 14:27	15 km	185 km S of Al Ghayz?ah, Yemen

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.