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M8.2 earthquake, Alaska Earthquake, 2021-07-29

MagnitudeM8.2mww
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.
Depth35 km
Time (UTC)2021-07-29 06:15
Rank in 20211 / 157among M6+
Rank since 190047 / 14,458
Energy vs an M6×1,995approx.

2021 Chignik, Alaska Earthquake · 55.36, -157.89

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

EventTime (UTC)DepthPlace
M5.5 2021-07-292021-07-29 06:1918 km106 km SSE of Perryville, Alaska
M5.7 2021-07-292021-07-29 06:2335 km99 km ESE of Chignik, Alaska
M5.9 2021-07-292021-07-29 06:231 km127 km SE of Chignik, Alaska
M5.5 2021-07-302021-07-30 03:5243 km140 km SE of Chignik, Alaska
M6.9 2021-08-142021-08-14 11:5721 km125 km SE of Perryville, Alaska

M6.5+ within 300 km (largest first)

Earlier M6+ within 300 km

EventTime (UTC)DepthPlace
M7.6 2020-10-192020-10-19 20:5428 km2020 Sand Point, Alaska Earthquake
M6.1 2020-07-282020-07-28 08:0335 km75 km SW of Sand Point, Alaska
M6.1 2020-07-222020-07-22 06:1617 km101 km ESE of Sand Point, Alaska
M7.8 2020-07-222020-07-22 06:1228 km2020 Perryville, Alaska Earthquake
M6.0 2018-12-312018-12-31 02:3531 km87 km SE of King Cove, Alaska
M6.2 2016-04-022016-04-02 05:5011 km42 km E of Port Heiden, Alaska
M6.8 2015-05-292015-05-29 07:0073 km117 km SSE of Ugashik, Alaska
M6.1 2011-07-162011-07-16 19:5936 km72 km ESE of King Cove, Alaska
M6.0 2008-05-252008-05-25 19:1820 km122 km SSE of Akhiok, Alaska
M6.3 2007-10-022007-10-02 18:0032 km72 km SSE of King Cove, 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.