International Disaster and Emergency Monitoring Center

Preliminary earthquake data and analysis

Earthquake Report
Base data
Event ID 1583694
Event time 2026-02-27 02:54:52 (UTC)
Local time 2026-02-26 17:54:52 - [It was evening in the affected area.]
Last update 2026-02-27 03:30:05 (UTC)
Magnitude 5.2
Depth 8.05 km
Class Moderate
Hypocenter Shallow depth
Mercalli scale 5
Possible effects Almost everyone feels movement. Sleeping people are awakened. Doors swing open or close. Dishes are broken. Pictures on the wall move. Small objects move or are turned over. Trees might shake. Liquids might spill out of open containers.
Data status confirmed
Data provider AuGOV

Location
Continent Asia
Country Japan
Administration area Okinawa
Nearest settlement Hirara
Distance 58 km
Course NNW
Surface type underwater quake
Tsunami region North Pacific
Water surface name Eastern China Sea

Overview map
Green circle [feel the Eq] 750 km, Orange circle 100 km, Yellow circle 150 km

Population map
Green circle [feel the seism activity] 750 km, Orange circle 100 km, Yellow circle 150 km

Risk Analisys
Nearest nuclear power plants
There is no known nuclear power plant nearby.
Nearest marine ports
Hirara Ko (57,79 km), Hirara Ko (57,79 km), Ishigaki (140,95 km), Ishigaki (140,95 km)
Nearest airports
Shimojishima Airport (51,64 km), Shimojishima Airport (51,64 km), Miyako Airport (59,98 km), Miyako Airport (59,98 km), Tarama Airport (81,76 km)
Nearest volcanoes
Submarine Volcano NNE of Iriomotejima volcano (141,40 km)
Quick Analysis
According to the epicenter of the quake, this is an underwater quake. Based on the hypocenter, an underwater landslide is conceivable and could trigger a tsunami. Based on the data received, using the depth of the hypocenter, a potential tsunami will reach the nearest (Hirara, Okinawa, Japan) settlement within 01:36. (PLEASE NOTE: THIS IS AN ESTIMATE ONLY!)