Home › 2018 › Alaska

M6.5 earthquake, Alaska, 2018-08-15

MagnitudeM6.5mww

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.

Depth34 km

Time (UTC)2018-08-15 21:56

Rank in 201836 / 134among M6+

Rank since 19004667 / 14,458

Energy vs an M6×6approx.

108 km WSW of Adak, Alaska · 51.42, -178.03

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

Event	Time (UTC)	Depth	Place
M6.3 2018-08-23	2018-08-23 03:35	20 km	97 km SW of Adak, Alaska

M6.5+ within 300 km (largest first)

1957 M8.6M8.6

1986 M8.0M8.0

1996 M7.9M7.9

1905 M7.6M7.6

1929 M7.3M7.3

1996 M7.3M7.3

2007 M7.2M7.2

1905 M7.2M7.2

1957 M7.2M7.2

1957 M7.1M7.1

1970 M7.1M7.1

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 2017-05-08	2017-05-08 17:00	13 km	135 km W of Adak, Alaska
M6.0 2016-03-19	2016-03-19 01:35	17 km	75 km S of Atka, Alaska
M6.3 2016-03-12	2016-03-12 18:06	19 km	72 km SSE of Atka, Alaska
M6.1 2013-09-15	2013-09-15 16:21	24 km	77 km SSW of Atka, Alaska
M6.0 2013-09-04	2013-09-04 06:27	17 km	82 km SSW of Atka, Alaska
M6.5 2013-09-04	2013-09-04 02:32	20 km	81 km SSW of Atka, Alaska
M6.0 2013-08-31	2013-08-31 06:38	18 km	118 km SSW of Atka, Alaska
M7.0 2013-08-30	2013-08-30 16:25	29 km	101 km SW of Atka, Alaska
M6.4 2012-09-26	2012-09-26 23:39	16 km	118 km WSW of Adak, Alaska
M6.0 2010-10-08	2010-10-08 03:49	28 km	120 km ESE of Adak, 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.