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Tonga earthquakes in 1972

41 earthquakes of magnitude 4.5 or more were located in Tonga in 1972. The largest: M7.0 146 km NW of Neiafu, Tonga, May 23, 1972.

From the USGS catalog. Times are local to each quake.

19711973

Map

Where every quake of 1972 was located in Tonga. Select one for its page.

Open the live map with earthquakes

Every quake of 1972

Magnitude 4.5 and up, newest first.

The largest

The 25 largest of 1972 in Tonga.

Month by month

Counted by UTC date, which is how the catalog files them.

MonthQuakesLargestWhere
January 197225.976 km WNW of Neiafu, Tonga
February 197225.980 km NE of Hihifo, Tonga
March 197256.047 km SE of Neiafu, Tonga
April 197266.087 km E of Hihifo, Tonga
May 197227.0146 km NW of Neiafu, Tonga
June 197235.8102 km NE of Hihifo, Tonga
July 197245.7116 km SW of Vaini, Tonga
August 197256.168 km E of ‘Ohonua, Tonga
September 197266.3195 km WNW of Hihifo, Tonga
October 197215.450 km E of ‘Ohonua, Tonga
November 197245.7south of Tonga
December 197216.0142 km E of Hihifo, Tonga

What this means

The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.

By year

Every year the USGS catalog covers.

Nearby

Tonga nowWorldwide in 1972

Sources

Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.