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M6.6 earthquake, Tonga, 1922-01-22

MagnitudeM6.6mw

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Depth15 km

Time (UTC)1922-01-22 03:23

Rank in 192232 / 81among M6+

Rank since 19003365 / 14,458

Energy vs an M6×8approx.

110 km NW of Pangai, Tonga · -19.19, -175.17

M6.5+ within 300 km (largest first)

2006 M8.0M8.0

1903 M8.0M8.0

1950 M7.8M7.8

1913 M7.8M7.8

1948 M7.5M7.5

2026 M7.5M7.5

1962 M7.5M7.5

1921 M7.4M7.4

1937 M7.3M7.3

1907 M7.3M7.3

1906 M7.2M7.2

1911 M7.2M7.2

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1921-11-29	1921-11-29 22:46	15 km	156 km NE of Neiafu, Tonga
M7.4 1921-02-27	1921-02-27 18:23	15 km	103 km ESE of Neiafu, Tonga
M6.6 1919-05-02	1919-05-02 02:07	25 km	151 km S of Hihifo, Tonga
M6.2 1919-04-23	1919-04-23 07:05	35 km	66 km WNW of Pangai, Tonga
M6.3 1918-10-14	1918-10-14 12:00	30 km	96 km SSE of Pangai, Tonga
M6.5 1917-06-24	1917-06-24 19:48	35 km	77 km SSW of Pangai, Tonga
M7.8 1913-06-26	1913-06-26 04:57	25 km	111 km SSE of Pangai, Tonga
M6.9 1913-05-08	1913-05-08 18:35	170 km	127 km S of Hihifo, Tonga
M7.2 1911-08-21	1911-08-21 16:28	230 km	241 km WNW of Houma, Tonga
M7.0 1910-04-20	1910-04-20 22:22	350 km	254 km WNW of Houma, 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.