Earthquake LogM8.1 earthquake, 2004 Tasman Sea Earthquake, 2004-12-23
MagnitudeM8.1mwc
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Depth10 km
Time (UTC)2004-12-23 14:59
Rank in 20042 / 157among M6+
Rank since 190069 / 14,458
Energy vs an M6×1,413approx.
2004 Tasman Sea Earthquake · -49.31, 161.34
M5.5+ within 100 km in the next 30 days
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M5.6 2004-12-23 | 2004-12-23 19:50 | 10 km | north of Macquarie Island |
M6.5+ within 300 km (largest first)
M8.1
M7.6
M7.5
M7.4
M7.1
M7.0
M7.0
M7.0
M7.0
M6.8
M6.8
M6.7
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.2 2004-07-01 | 2004-07-01 04:39 | 10 km | Auckland Islands, New Zealand region |
| M6.7 1998-03-20 | 1998-03-20 21:08 | 10 km | Auckland Islands, New Zealand region |
| M6.1 1994-01-03 | 1994-01-03 13:24 | 16 km | Auckland Islands, New Zealand region |
| M6.3 1989-11-21 | 1989-11-21 14:37 | 27 km | Auckland Islands, New Zealand region |
| M6.0 1989-05-23 | 1989-05-23 17:11 | 10 km | north of Macquarie Island |
| M6.1 1984-05-23 | 1984-05-23 05:16 | 10 km | north of Macquarie Island |
| M7.0 1982-07-07 | 1982-07-07 10:43 | 10 km | north of Macquarie Island |
| M7.6 1981-05-25 | 1981-05-25 05:25 | 33 km | off the west coast of the South Island of New Zealand |
| M6.4 1972-04-01 | 1972-04-01 23:51 | 10 km | Auckland Islands, New Zealand region |
| M6.7 1967-09-20 | 1967-09-20 09:39 | 18 km | Auckland Islands, New Zealand region |
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.