World Map › Major Earthquakes Since 1900 › 1975
Historic Earthquake
1975 Tonga Earthquake
11 October 1975 · S of Tonga · Tonga
On 11 October 1975 at 14:35 UTC, a magnitude 7.8 earthquake struck Tonga (S of Tonga), at a depth of 9 km. It occurred on the Pacific Plate, 48 km from its boundary with the Kermadec Plate (subduction zone).
- Date
- 11 October 1975
- Time
- 14:35 UTC
- Magnitude
- 7.8
- Depth
- 9 km
- Plate
- Pacific Plate
- Country
- Tonga
- Nearest Volcano
- Kermadec Arc at 24.8°S (192 km)
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 20092009 Tonga Earthquake · M 7.6
- 2007Kermadec Islands (New Zealand) · M 7.8
- 1982Tonga · M 7.7
- 1977Tonga · M 7.2
- 19771977 Tonga Earthquake · M 7.21 deaths
- 1963Tonga · M 7.5
- 1956Tonga · M 7.0
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth