World Map › Major Earthquakes Since 1900 › 1977
Historic Earthquake
1977 Tonga Earthquake
10 October 1977 · Tonga
On 10 October 1977 at 11:53 UTC, a magnitude 7.2 earthquake struck Tonga, at a depth of 33 km. It occurred on the Kermadec Plate, 15 km from its boundary with the Pacific Plate (subduction zone). It triggered a tsunami.
- Date
- 10 October 1977
- Time
- 11:53 UTC
- Magnitude
- 7.2
- Depth
- 33 km
- Tsunami
- Yes
- Plate
- Kermadec Plate
- Country
- Tonga
- Nearest Volcano
- Monowai (178 km)
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 2007Kermadec Islands (New Zealand) · M 7.8
- 1986Raoul · M 8.1
- 1982Tonga · M 7.7
- 1975S of Tonga · M 7.8
- 1963Tonga · M 7.5
- 1961Kermadec Islands (New Zealand) · M 7.5
- 1956Tonga · M 7.0
- 1955Kermadec Islands (New Zealand) · M 7.8
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth