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M6.5 earthquake, northern East Pacific Rise, 1978-12-25

MagnitudeM6.5ms

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Depth10 km

Time (UTC)1978-12-25 23:57

Rank in 197831 / 90among M6+

Rank since 19004303 / 14,458

Energy vs an M6×6approx.

northern East Pacific Rise · 10.37, -103.86

M6.5+ within 300 km (largest first)

1910 M6.9M6.9

1995 M6.6M6.6

2016 M6.6M6.6

1936 M6.6M6.6

1957 M6.5M6.5

1978 M6.5M6.5

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.5 1957-08-16	1957-08-16 23:32	15 km	northern East Pacific Rise
M6.0 1954-01-20	1954-01-20 04:16	15 km	northern East Pacific Rise
M6.1 1950-01-10	1950-01-10 03:05	15 km	northern East Pacific Rise
M6.0 1948-07-15	1948-07-15 11:02	15 km	northern East Pacific Rise
M6.6 1936-05-28	1936-05-28 18:49	10 km	northern East Pacific Rise
M6.0 1926-10-01	1926-10-01 09:08	15 km	northern East Pacific Rise
M6.9 1910-05-31	1910-05-31 04:53	10 km	northern East Pacific Rise

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.