Earthquake LogHome › 2026 › northern Mid-Atlantic Ridge
M6.6 earthquake, northern Mid-Atlantic Ridge, 2026-03-21
MagnitudeM6.6mww
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Depth10 km
Time (UTC)2026-03-21 12:16
Rank in 202619 / 102among M6+
Rank since 19003814 / 14,458
Energy vs an M6×8approx.
northern Mid-Atlantic Ridge · 23.86, -45.80
M5.5+ within 100 km in the next 30 days
None
M6.5+ within 300 km (largest first)
M6.8
M6.6
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.1 2016-06-21 | 2016-06-21 16:26 | 10 km | northern Mid-Atlantic Ridge |
| M6.0 2014-07-27 | 2014-07-27 01:28 | 10 km | northern Mid-Atlantic Ridge |
| M6.0 2009-06-06 | 2009-06-06 20:33 | 14 km | northern Mid-Atlantic Ridge |
| M6.4 1991-06-10 | 1991-06-10 17:35 | 10 km | northern Mid-Atlantic Ridge |
| M6.3 1980-03-26 | 1980-03-26 20:43 | 10 km | northern Mid-Atlantic Ridge |
| M6.0 1977-06-28 | 1977-06-28 19:18 | 33 km | northern Mid-Atlantic Ridge |
| M6.4 1963-05-19 | 1963-05-19 21:35 | 22 km | northern Mid-Atlantic Ridge |
| M6.0 1944-05-06 | 1944-05-06 00:13 | 15 km | northern Mid-Atlantic Ridge |
| M6.2 1924-10-14 | 1924-10-14 05:00 | 10 km | northern Mid-Atlantic Ridge |
| M6.8 1922-01-09 | 1922-01-09 05:09 | 10 km | northern Mid-Atlantic Ridge |
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.