International Disaster and Emergency Monitoring Center

Preliminary earthquake data and analysis


Earthquake Report
Base data
Event ID 1774398
Event time 2026-10-18 07:37:30 (UTC)
Local time 2026-10-17 22:37:30 - [It was night in the affected area.]
Last update 2026-10-18 07:42:18 (UTC)
Magnitude 3
Depth 10 km
Class Minor
Hypocenter Shallow depth
Mercalli scale 1
Possible effects People do not feel any Earth movement.
Data status
Data provider EMSC

Location
Continent Asia
Country Japan
Administration area Kumamoto Prefecture
Nearest settlement Wakasu
Distance 4 km
Course W
Surface type underwater quake
Tsunami region North Pacific
Water surface name Eastern China Sea



Risk Analisys
Nearest nuclear power plants
There is no known nuclear power plant nearby.
Nearest marine ports
Misumi Ko (12,52 km), Misumi Ko (12,52 km), Yatsushiro (12,74 km), Yatsushiro (12,74 km), Miike (47,57 km)
Nearest airports
Kumamoto Airport (35,55 km), Kumamoto Airport (35,55 km), Amakusa Airport (43,43 km), Amakusa Airport (43,43 km), Saga Airport (67,04 km)
Nearest volcanoes
Kinpo volcano (23,71 km), Unzendake volcano (33,40 km), Asosan volcano (56,77 km), Kakuto volcano (63,84 km), Taradake volcano (64,77 km)
Quick Analysis
Due to the small magnitude of the earthquake and the moderate depth of the hypocenter, minimal damage is conceivable.According to the epicenter of the quake, this is an underwater quake.