Translation guide
The English word "magnitude" refers to size, extent, or importance. In Japanese, the best translation depends on whether you mean physical size, scale of an event, brightness of a star, or importance of something.
Referring to the large size, scale, or extent of something.
The most common and versatile word for 'size' or 'magnitude'. Can be used for physical dimensions, scale, or degree.
この地震の大きさは想像を超えていた。
The magnitude of this earthquake was beyond imagination.
問題の大きさを理解していない。
He doesn't understand the magnitude of the problem.
Refers to 'scale' or 'scope', often used for projects, events, or disasters. More formal than 大きさ.
そのプロジェクトの規模は前例がない。
The magnitude of the project is unprecedented.
Means 'degree' or 'extent'. Used when magnitude is about level or amount, often in formal contexts.
被害の程度はまだ不明だ。
The magnitude of the damage is still unknown.
Specifically referring to the magnitude of an earthquake on the Richter scale or similar.
The standard loanword for earthquake magnitude. Used in news and scientific contexts.
地震のマグニチュードは7.3でした。
The magnitude of the earthquake was 7.3.
Refers to the Japanese seismic intensity scale (shindo), which measures shaking at a specific location, not the total energy. Not a direct translation of 'magnitude', but often confused. Use マグニチュード for Richter magnitude.
震度 is not the same as magnitude. It describes local shaking intensity (1-7), while magnitude describes total energy released.
Referring to the brightness of a star or celestial object.
The standard term for stellar magnitude. Used in astronomy.
その星の等級は1.5です。
The magnitude of that star is 1.5.
Referring to the importance, significance, or impact of something.
Means 'seriousness' or 'gravity'. Used when magnitude implies importance or severe consequences.
この決定の重大さを認識すべきだ。
We should recognize the magnitude of this decision.
Directly means 'importance'. Less about size, more about significance.
その発見の重要性は計り知れない。
The magnitude of the discovery is immeasurable.
In Japanese, マグニチュード (magnitude) represents the energy released by an earthquake, while 震度 (shindo) represents the intensity of shaking at a specific location. English uses 'magnitude' for the former, but often confuses the two. When discussing earthquakes in Japan, use マグニチュード for the Richter scale and 震度 for the JMA intensity scale.
A seismic intensity of upper 5 was observed.