Home › 1964 › Tonga

M6.5 earthquake, Tonga, 1964-07-09

MagnitudeM6.5mw

This page is updated only once a day and is not an alert service. For current earthquake and tsunami information, check the Japan Meteorological Agency, the USGS and your local authorities.

Depth28 km

Time (UTC)1964-07-09 11:22

Rank in 196441 / 144among M6+

Rank since 19004239 / 14,458

Energy vs an M6×6approx.

221 km SSW of ‘Ohonua, Tonga · -23.28, -175.48

M6.5+ within 300 km (largest first)

1975 M7.8M7.8

1997 M7.8M7.8

1963 M7.6M7.6

2009 M7.6M7.6

1948 M7.5M7.5

2013 M7.4M7.4

1905 M7.4M7.4

1977 M7.2M7.2

1960 M7.2M7.2

1982 M7.2M7.2

1986 M7.2M7.2

1996 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.6 1963-12-18	1963-12-18 00:30	55 km	south of the Fiji Islands
M6.2 1963-11-16	1963-11-16 22:43	15 km	119 km SSW of ‘Ohonua, Tonga
M6.3 1963-10-31	1963-10-31 03:17	16 km	80 km SSE of ‘Ohonua, Tonga
M6.2 1961-12-06	1961-12-06 13:35	30 km	280 km SSW of ‘Ohonua, Tonga
M6.1 1961-05-22	1961-05-22 17:32	70 km	225 km SSW of Vaini, Tonga
M6.0 1961-05-22	1961-05-22 13:44	27 km	70 km ESE of ‘Ohonua, Tonga
M6.4 1961-03-20	1961-03-20 23:42	25 km	south of Tonga
M7.2 1960-11-24	1960-11-24 06:52	30 km	south of the Fiji Islands
M6.6 1960-11-23	1960-11-23 14:12	25 km	south of the Fiji Islands
M6.2 1960-08-09	1960-08-09 16:46	75 km	south of the Fiji Islands

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.