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M6.6 earthquake, north of Ascension Island, 1990-07-14

MagnitudeM6.6mw

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Depth11 km

Time (UTC)1990-07-14 05:54

Rank in 199036 / 153among M6+

Rank since 19003532 / 14,458

Energy vs an M6×8approx.

north of Ascension Island · 0.00, -17.38

M6.5+ within 300 km (largest first)

2016 M7.1M7.1

1966 M6.9M6.9

1973 M6.8M6.8

1992 M6.8M6.8

1918 M6.7M6.7

1933 M6.7M6.7

1996 M6.6M6.6

2003 M6.6M6.6

1990 M6.6M6.6

1942 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1987-05-05	1987-05-05 10:50	10 km	central Mid-Atlantic Ridge
M6.4 1986-06-24	1986-06-24 06:56	22 km	north of Ascension Island
M6.2 1984-04-22	1984-04-22 06:14	10 km	central Mid-Atlantic Ridge
M6.4 1981-07-07	1981-07-07 21:10	10 km	central Mid-Atlantic Ridge
M6.8 1973-08-28	1973-08-28 15:01	33 km	central Mid-Atlantic Ridge
M6.2 1970-12-25	1970-12-25 12:53	16 km	central Mid-Atlantic Ridge
M6.9 1966-10-19	1966-10-19 08:01	22 km	north of Ascension Island
M6.1 1965-11-15	1965-11-15 11:18	10 km	central Mid-Atlantic Ridge
M6.2 1965-08-16	1965-08-16 12:36	24 km	central Mid-Atlantic Ridge
M6.2 1958-09-03	1958-09-03 03:44	15 km	north of Ascension Island

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.