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M6.8 earthquake, Prince Edward Islands, 1997-04-28

MagnitudeM6.8mwc

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Depth10 km

Time (UTC)1997-04-28 12:07

Rank in 199721 / 136among M6+

Rank since 19002394 / 14,458

Energy vs an M6×16approx.

Prince Edward Islands region · -42.50, 42.69

M6.5+ within 300 km (largest first)

2023 M6.8M6.8

1997 M6.8M6.8

1908 M6.7M6.7

2019 M6.7M6.7

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1986-10-14	1986-10-14 13:07	10 km	Prince Edward Islands region
M6.1 1979-02-18	1979-02-18 05:23	10 km	Prince Edward Islands region
M6.3 1956-05-19	1956-05-19 20:02	15 km	Prince Edward Islands region
M6.1 1950-02-11	1950-02-11 01:22	15 km	Prince Edward Islands region
M6.0 1941-11-20	1941-11-20 15:16	15 km	Prince Edward Islands region
M6.0 1928-03-17	1928-03-17 14:22	10 km	Prince Edward Islands region
M6.7 1908-04-22	1908-04-22 23:44	10 km	Southwest Indian 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.