noun
Tonankai earthquake of 1944
Historical term referring to the 1944 Tonankai earthquake, a major seismic event off the coast of Japan.
東南海地震は1944年に発生した。
The Tonankai earthquake occurred in 1944.
Compound of 東南 (tōnan, 'southeast') + 海 (kai, 'sea') + 地震 (jishin, 'earthquake'), referring to the earthquake's location southeast of Japan.