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M7.0 earthquake, Alaska, 1906-12-23

MagnitudeM7.0mw

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Depth15 km

Time (UTC)1906-12-23 17:21

Rank in 190622 / 78among M6+

Rank since 19001340 / 14,458

Energy vs an M6×35approx.

153 km SE of Halibut Cove, Alaska · 58.56, -149.47

M6.5+ within 300 km (largest first)

1964 M9.2M9.2

2018 M7.9M7.9

1900 M7.9M7.9

2016 M7.1M7.1

1906 M7.0M7.0

1928 M7.0M7.0

1933 M6.8M6.8

1965 M6.8M6.8

1954 M6.8M6.8

1934 M6.7M6.7

1912 M6.7M6.7

1968 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.9 1900-10-09	1900-10-09 12:28	20 km	Kodiak Island region, Alaska

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.