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M7.7 earthquake, Afghanistan, 1909-07-07

MagnitudeM7.7mw

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Depth200 km

Time (UTC)1909-07-07 21:37

Rank in 19091 / 44among M6+

Rank since 1900235 / 14,458

Energy vs an M6×355approx.

52 km ESE of Farkhār, Afghanistan · 36.32, 70.36

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

1983 M7.4M7.4

1985 M7.4M7.4

2002 M7.4M7.4

1956 M7.3M7.3

1911 M7.2M7.2

1902 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.0 1908-10-24	1908-10-24 21:16	220 km	74 km NE of Bāzārak, Afghanistan
M6.9 1908-10-23	1908-10-23 20:14	220 km	127 km E of Khorugh, Tajikistan
M6.6 1908-04-16	1908-04-16 17:38	190 km	29 km SE of Jurm, Afghanistan
M6.5 1908-03-12	1908-03-12 19:26	190 km	57 km NNW of Pārūn, Afghanistan
M6.6 1907-12-25	1907-12-25 22:35	105 km	43 km NE of Khorugh, Tajikistan
M6.8 1907-04-13	1907-04-13 17:57	225 km	42 km S of Jurm, Afghanistan
M7.1 1906-10-24	1906-10-24 14:43	35 km	24 km SSW of Tirmiz, Uzbekistan
M7.2 1902-10-06	1902-10-06 09:15	200 km	Hindu Kush region, 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.