World Map › Major Earthquakes Since 1900 › 1975
Historic Earthquake
1975 Papua New Guinea Earthquake
20 July 1975 · Bismarck Sea, Bougainville · Papua New Guinea
On 20 July 1975 at 14:37 UTC, a magnitude 7.9 earthquake struck Papua New Guinea (Bismarck Sea, Bougainville), at a depth of 49 km. It occurred on the Pacific Plate, 47 km from its boundary with the North Bismarck Plate (collision zone). It triggered a tsunami.
- Date
- 20 July 1975
- Time
- 14:37 UTC
- Magnitude
- 7.9
- Depth
- 49 km
- Maximum Intensity
- VIII (Mercalli)
- Tsunami
- See the tsunami (2.0 m wave)
- Plate
- Pacific Plate
- Country
- Papua New Guinea
- Nearest Volcano
- Bagana (53 km)
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 20172017 Papua New Guinea Earthquake · M 7.93 deaths
- 2016New Britain New Ireland · M 7.9
- 20002000 New Ireland Earthquakes · M 7.8
- 1971Bismarck Sea Rabaul · M 8.1
- 19711971 Solomon Islands Earthquakes · M 7.93 deaths
- 1968New Ireland · M 7.8
- 1919Solomon Islands · M 8.2
- 1907New Britain · M 7.7
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth