Every countryTonga

Tonga earthquakes in 1930

4 earthquakes of magnitude 4.5 or more were located in Tonga in 1930. The largest: M6.5 Tonga, Feb 15, 1930.

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

19291931

Map

Where every quake of 1930 was located in Tonga. Select one for its page.

Open the live map with earthquakes

Every quake of 1930

Magnitude 4.5 and up, newest first.

Month by month

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

MonthQuakesLargestWhere
January 193016.2133 km E of Hihifo, Tonga
February 193016.5Tonga
March 19300
April 193015.9150 km W of Neiafu, Tonga
May 19300
June 193016.420 km SSW of Pangai, Tonga
July 19300
August 19300
September 19300
October 19300
November 19300
December 19300

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 1930

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.