International Disaster and Emergency Monitoring Center

Preliminary earthquake data and analysis


Earthquake Report
Base data
Event ID 1383210
Event time 2025-06-06 19:28:30 (UTC)
Local time 2025-06-06 06:28:30 - [It was morning in the affected area.]
Last update 2025-06-06 19:47:06 (UTC)
Magnitude 6
Depth 347.38 km
Class Strong
Hypocenter Great depth
Mercalli scale 6
Possible effects Everyone feels movement. People have trouble walking. Objects fall from shelves. Pictures fall off walls. Furniture moves. Plaster in walls might crack. Trees and bushes shake. Damage is slight in poorly built buildings. No structural damage.
Data status preliminary
Data provider AuGOV

Location
Continent Pacific Ocean - East
Country Tonga
Administration area Tongatapu
Nearest settlement Houma
Distance 290 km
Course WSW
Surface type underwater quake
Tsunami region South Pacific
Water surface name South Pacific Ocean



Risk Analisys
Nearest nuclear power plants
There is no known nuclear power plant nearby.
Nearest marine ports
There is no known marine port nearby.
Nearest airports
There is no known marine port nearby.
Nearest volcanoes
There is no known volcanoes nearby.
Quick Analysis
According to the epicenter of the quake, this is an underwater quake. Based on the data received, the formation of a tsunami is not conceivable on the basis of the high-depth hypocenter. Underwater landslides, volcanic activity, however, cannot be ruled out.