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M6.6 earthquake, Russia, 1975-08-15

MagnitudeM6.6ms

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Depth4 km

Time (UTC)1975-08-15 07:28

Rank in 197524 / 106among M6+

Rank since 19003457 / 14,458

Energy vs an M6×8approx.

Komandorskiye Ostrova, Russia region · 54.88, 167.84

M6.5+ within 300 km (largest first)

1905 M7.8M7.8

2017 M7.7M7.7

1923 M7.4M7.4

2018 M7.3M7.3

1990 M7.1M7.1

1925 M7.0M7.0

1953 M7.0M7.0

1988 M6.9M6.9

2017 M6.8M6.8

1986 M6.8M6.8

1962 M6.7M6.7

1977 M6.7M6.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1973-12-29	1973-12-29 08:20	33 km	Komandorskiye Ostrova, Russia region
M6.3 1971-12-17	1971-12-17 19:06	25 km	115 km SE of Ust’-Kamchatsk Staryy, Russia
M6.0 1970-02-06	1970-02-06 00:11	21 km	195 km SSE of Ust’-Kamchatsk Staryy, Russia
M6.1 1968-07-28	1968-07-28 21:12	24 km	273 km ESE of Ust’-Kamchatsk Staryy, Russia
M6.4 1966-07-19	1966-07-19 01:40	12 km	144 km E of Ust’-Kamchatsk Staryy, Russia
M6.4 1965-02-04	1965-02-04 14:18	26 km	142 km W of Attu Station, Alaska
M6.7 1962-12-26	1962-12-26 22:25	23 km	Komandorskiye Ostrova, Russia region
M6.0 1962-06-14	1962-06-14 07:55	15 km	Komandorskiye Ostrova, Russia region
M6.3 1959-05-12	1959-05-12 04:57	25 km	Komandorskiye Ostrova, Russia region
M6.0 1958-03-03	1958-03-03 16:18	20 km	264 km ESE of Ust’-Kamchatsk Staryy, 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.