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M7.4 earthquake, Afghanistan, 1983-12-30

MagnitudeM7.4mw

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Depth214 km

Time (UTC)1983-12-30 23:52

Rank in 19834 / 136among M6+

Rank since 1900582 / 14,458

Energy vs an M6×126approx.

55 km S of Jurm, Afghanistan · 36.37, 70.74

M6.5+ within 300 km (largest first)

1921 M7.8M7.8

1909 M7.7M7.7

1949 M7.5M7.5

2015 M7.5M7.5

1965 M7.4M7.4

1911 M7.4M7.4

1985 M7.4M7.4

2002 M7.4M7.4

1983 M7.4M7.4

1911 M7.2M7.2

1902 M7.2M7.2

2015 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1983-09-12	1983-09-12 15:42	209 km	45 km WSW of Ashk?sham, Afghanistan
M6.6 1982-12-16	1982-12-16 00:40	36 km	14 km NW of Nahr?n, Afghanistan
M6.2 1981-09-12	1981-09-12 07:15	33 km	69 km WSW of Gilgit, Pakistan
M6.3 1981-05-02	1981-05-02 16:04	229 km	54 km SW of Ashk?sham, Afghanistan
M6.1 1979-08-20	1979-08-20 03:50	229 km	26 km ESE of Farkh?r, Afghanistan
M6.1 1976-11-27	1976-11-27 21:42	190 km	43 km SSE of Jurm, Afghanistan
M6.2 1974-12-28	1974-12-28 12:11	22 km	42 km NNW of Shingli Bala, Pakistan
M6.5 1974-07-30	1974-07-30 05:12	211 km	57 km S of Jurm, Afghanistan
M6.2 1972-09-03	1972-09-03 16:48	32 km	42 km SW of Gahkuch, Pakistan
M6.2 1972-06-24	1972-06-24 15:29	24 km	36 km SSW of Farkhār, Afghanistan

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.