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M6.6 earthquake, Russia, 1978-03-22

MagnitudeM6.6ms

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Depth33 km

Time (UTC)1978-03-22 21:34

Rank in 197828 / 90among M6+

Rank since 19003468 / 14,458

Energy vs an M6×8approx.

151 km SE of Kuril’sk, Russia · 44.14, 149.03

M6.5+ within 300 km (largest first)

1963 M8.5M8.5

1958 M8.3M8.3

1994 M8.3M8.3

1969 M8.2M8.2

1918 M8.1M8.1

1995 M7.9M7.9

1918 M7.8M7.8

1963 M7.8M7.8

1973 M7.7M7.7

1978 M7.6M7.6

1991 M7.6M7.6

1978 M7.5M7.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.7 1978-03-22	1978-03-22 00:50	33 km	160 km SSE of Kuril’sk, Russia
M6.0 1978-01-13	1978-01-13 20:03	52 km	155 km ESE of Kuril’sk, Russia
M6.0 1977-03-19	1977-03-19 10:56	70 km	116 km SSE of Kuril’sk, Russia
M6.1 1976-09-22	1976-09-22 00:16	64 km	112 km ESE of Kuril’sk, Russia
M7.0 1976-01-21	1976-01-21 10:05	41 km	104 km ESE of Kuril’sk, Russia
M6.1 1975-06-22	1975-06-22 22:44	21 km	78 km SSE of Shikotan, Russia
M6.2 1975-06-15	1975-06-15 00:19	38 km	88 km E of Shikotan, Russia
M6.0 1975-06-14	1975-06-14 18:38	31 km	98 km ESE of Shikotan, Russia
M6.4 1975-06-13	1975-06-13 18:08	19 km	86 km ESE of Shikotan, Russia
M7.0 1975-06-10	1975-06-10 13:47	15 km	118 km SE of Shikotan, Russia

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.