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M6.8 earthquake, Canada, 1980-12-17

MagnitudeM6.8ms

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Depth10 km

Time (UTC)1980-12-17 16:21

Rank in 198010 / 95among M6+

Rank since 19002311 / 14,458

Energy vs an M6×16approx.

212 km SW of Port McNeill, Canada · 49.48, -129.50

M6.5+ within 300 km (largest first)

1929 M7.5M7.5

1970 M7.3M7.3

1918 M6.9M6.9

2018 M6.8M6.8

1980 M6.8M6.8

1976 M6.7M6.7

2004 M6.7M6.7

1992 M6.7M6.7

1929 M6.7M6.7

1939 M6.6M6.6

2008 M6.6M6.6

1972 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1978-06-11	1978-06-11 14:55	10 km	227 km SW of Port McNeill, Canada
M6.7 1976-12-20	1976-12-20 20:33	10 km	250 km W of Tofino, Canada
M6.0 1976-02-23	1976-02-23 15:14	16 km	254 km WNW of Port McNeill, Canada
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
M7.3 1970-06-24	1970-06-24 13:09	20 km	288 km S of Prince Rupert, 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

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.