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M7.8 earthquake, Canada, 2012-10-28

MagnitudeM7.8mww

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Depth14 km

Time (UTC)2012-10-28 03:04

Rank in 20123 / 133among M6+

Rank since 1900210 / 14,458

Energy vs an M6×501approx.

206 km SW of Prince Rupert, Canada · 52.79, -132.10

M5.5+ within 100 km in the next 30 days

Event	Time (UTC)	Depth	Place
M5.5 2012-10-28	2012-10-28 03:52	10 km	222 km SSW of Prince Rupert, Canada
M6.3 2012-10-28	2012-10-28 18:54	9 km	237 km SW of Prince Rupert, Canada
M5.6 2012-10-28	2012-10-28 19:09	10 km	Haida Gwaii, Canada
M6.2 2012-10-30	2012-10-30 02:49	9 km	241 km SSW of Prince Rupert, Canada

M6.5+ within 300 km (largest first)

1949 M8.0M8.0

2012 M7.8M7.8

1929 M7.5M7.5

1970 M7.3M7.3

2004 M6.8M6.8

1992 M6.7M6.7

1938 M6.7M6.7

1929 M6.7M6.7

2008 M6.6M6.6

2009 M6.6M6.6

1960 M6.5M6.5

1910 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.6 2009-11-17	2009-11-17 15:30	17 km	254 km SSW of Prince Rupert, Canada
M6.1 2008-01-09	2008-01-09 14:40	10 km	Haida Gwaii Region, Canada
M6.4 2008-01-05	2008-01-05 11:44	10 km	251 km WNW of Port McNeill, Canada
M6.6 2008-01-05	2008-01-05 11:01	15 km	267 km WNW of Port McNeill, Canada
M6.8 2004-06-28	2004-06-28 09:49	20 km	98 km WSW of Craig, Alaska
M6.1 2001-10-12	2001-10-12 05:02	20 km	225 km SSW of Prince Rupert, Canada
M6.2 2001-02-17	2001-02-17 20:11	20 km	151 km SSW of Hydaburg, Alaska
M6.1 1998-08-30	1998-08-30 11:33	10 km	254 km W of Port McNeill, Canada
M6.0 1993-08-03	1993-08-03 07:19	10 km	269 km WNW of Port McNeill, Canada
M6.0 1992-04-06	1992-04-06 15:16	10 km	200 km W 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.