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M7.5 earthquake, Tonga, 1962-05-21

MagnitudeM7.5mw

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Depth390 km

Time (UTC)1962-05-21 21:15

Rank in 19621 / 98among M6+

Rank since 1900518 / 14,458

Energy vs an M6×160approx.

262 km WNW of Haveluloto, Tonga · -20.09, -177.46

M6.5+ within 300 km (largest first)

2018 M8.2M8.2

1903 M8.0M8.0

1997 M7.8M7.8

1919 M7.8M7.8

1950 M7.8M7.8

2002 M7.7M7.7

1909 M7.6M7.6

1994 M7.6M7.6

2026 M7.5M7.5

1962 M7.5M7.5

1957 M7.4M7.4

1996 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.1 1962-04-30	1962-04-30 16:16	20 km	216 km WNW of Neiafu, Tonga
M6.4 1959-09-15	1959-09-15 11:05	594 km	Fiji region
M7.4 1957-09-28	1957-09-28 14:20	587 km	Fiji region
M6.7 1955-08-06	1955-08-06 08:31	360 km	255 km W of Haveluloto, Tonga
M6.1 1951-07-02	1951-07-02 21:46	35 km	5 km S of Tatakamotonga, Tonga
M7.8 1950-12-14	1950-12-14 01:52	216 km	159 km W of Pangai, Tonga
M6.8 1950-09-22	1950-09-22 23:53	400 km	Fiji region
M6.3 1948-12-16	1948-12-16 07:18	15 km	182 km W of Pangai, Tonga
M7.1 1948-01-27	1948-01-27 11:58	595 km	Fiji region
M7.3 1944-05-25	1944-05-25 01:06	633 km	Fiji 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.