Home › 1983 › Alaska

M6.6 earthquake, Alaska, 1983-07-12

MagnitudeM6.6mw

This page is updated only once a day and is not an alert service. For current earthquake and tsunami information, check the Japan Meteorological Agency, the USGS and your local authorities.

Depth37 km

Time (UTC)1983-07-12 15:10

Rank in 198337 / 136among M6+

Rank since 19003484 / 14,458

Energy vs an M6×8approx.

37 km WNW of Tatitlek, Alaska · 61.03, -147.29

M6.5+ within 300 km (largest first)

1964 M9.2M9.2

2002 M7.9M7.9

2018 M7.1M7.1

1928 M7.0M7.0

1943 M6.9M6.9

1933 M6.8M6.8

1936 M6.8M6.8

1934 M6.8M6.8

1954 M6.8M6.8

1934 M6.7M6.7

1970 M6.7M6.7

1912 M6.7M6.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1970-08-18	1970-08-18 17:52	27 km	13 km ENE of Cordova, Alaska
M6.7 1970-04-16	1970-04-16 05:33	10 km	163 km W of Yakutat, Alaska
M6.2 1970-02-24	1970-02-24 08:05	17 km	165 km SE of Cordova, Alaska
M6.1 1965-09-30	1965-09-30 23:47	20 km	171 km SE of Cordova, Alaska
M6.1 1964-09-16	1964-09-16 01:50	14 km	53 km E of Chenega, Alaska
M6.4 1964-04-20	1964-04-20 11:56	30 km	37 km SSE of Glacier View, Alaska
M6.4 1964-04-03	1964-04-03 22:33	39 km	23 km S of Glacier View, Alaska
M6.0 1964-03-30	1964-03-30 07:09	11 km	78 km S of Cordova, Alaska
M6.0 1964-03-28	1964-03-28 20:29	18 km	54 km SE of Lowell Point, Alaska
M6.3 1964-03-28	1964-03-28 14:49	10 km	56 km WSW of Cordova, 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.