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M6.7 earthquake, Canada, 1976-12-20

MagnitudeM6.7ms

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Depth10 km

Time (UTC)1976-12-20 20:33

Rank in 197625 / 109among M6+

Rank since 19002827 / 14,458

Energy vs an M6×11approx.

250 km W of Tofino, Canada · 48.80, -129.29

M6.5+ within 300 km (largest first)

1929 M7.5M7.5

1918 M6.9M6.9

1980 M6.8M6.8

2018 M6.8M6.8

2004 M6.7M6.7

1992 M6.7M6.7

1976 M6.7M6.7

1929 M6.7M6.7

1939 M6.6M6.6

2008 M6.6M6.6

1972 M6.6M6.6

2014 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.6 1972-07-23	1972-07-23 19:13	10 km	176 km WSW of Port McNeill, Canada
M6.1 1972-07-05	1972-07-05 10:16	20 km	118 km WNW of Tofino, Canada
M6.0 1971-12-05	1971-12-05 05:50	17 km	230 km SW of Port McNeill, Canada
M6.2 1971-03-13	1971-03-13 23:51	12 km	230 km W of Port McNeill, Canada
M6.1 1964-03-31	1964-03-31 09:01	10 km	242 km W of Port McNeill, Canada
M6.2 1960-12-01	1960-12-01 20:49	20 km	248 km SW of Port McNeill, Canada
M6.5 1959-08-26	1959-08-26 10:27	15 km	243 km W of Port McNeill, Canada
M6.1 1957-12-16	1957-12-16 17:27	15 km	65 km WSW of Vernon, Canada
M6.1 1957-03-24	1957-03-24 08:22	15 km	Vancouver Island, Canada region
M6.5 1956-12-21	1956-12-21 08:59	15 km	269 km WNW of Port McNeill, Canada

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.