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M6.5 earthquake, Tonga, 1975-09-24

MagnitudeM6.5ms

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Depth33 km

Time (UTC)1975-09-24 01:47

Rank in 197534 / 106among M6+

Rank since 19004288 / 14,458

Energy vs an M6×6approx.

88 km SSE of Pangai, Tonga · -20.54, -173.99

M6.5+ within 300 km (largest first)

1919 M8.1M8.1

2006 M8.0M8.0

1903 M8.0M8.0

1950 M7.8M7.8

1913 M7.8M7.8

2009 M7.6M7.6

1948 M7.5M7.5

2026 M7.5M7.5

1921 M7.4M7.4

1907 M7.3M7.3

2022 M7.3M7.3

1906 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.0 1975-05-18	1975-05-18 23:53	43 km	108 km ENE of ‘Ohonua, Tonga
M6.1 1972-08-28	1972-08-28 18:58	10 km	68 km E of ‘Ohonua, Tonga
M6.1 1972-05-08	1972-05-08 16:15	31 km	182 km W of Pangai, Tonga
M6.0 1972-03-01	1972-03-01 09:04	10 km	47 km SE of Neiafu, Tonga
M6.0 1971-09-10	1971-09-10 06:28	21 km	72 km SSE of Pangai, Tonga
M6.3 1970-07-17	1970-07-17 20:04	21 km	82 km SSE of ‘Ohonua, Tonga
M6.1 1970-07-16	1970-07-16 21:17	15 km	90 km SE of Neiafu, Tonga
M6.0 1970-02-18	1970-02-18 15:23	252 km	158 km WNW of Haveluloto, Tonga
M6.1 1968-09-26	1968-09-26 14:37	249 km	166 km W of Haveluloto, Tonga
M6.3 1968-07-29	1968-07-29 11:12	50 km	129 km S of ‘Ohonua, Tonga

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.