Major earthquake
M7.9 Earthquake — 78 km E of Hachinohe, Japan
1931-03-09 03:49 UTC · 40.59°, 142.42°
A magnitude 7.9 (major) earthquake struck 78 km E of Hachinohe, Japan on 1931-03-09 03:49 UTC, at a depth of 35 km. See it live on Earth Live's real-time 3D globe.
M7.9
Magnitude
35 km
Depth
11.4M t
TNT equivalent
VII
Max intensity (MMI)
Source: USGS event page. The TNT equivalent is computed from the magnitude with the standard Gutenberg–Richter energy relation; all other figures are USGS's own.
This area's earthquake history
In the year before this quake, USGS recorded 4 earthquakes of magnitude 2.5 or more within 300 km.
Strongest recorded within 300 km since 1900:
- M9.1 — 2011 Great Tohoku Earthquake, Japan · 2011-03-11
- M8.4 — 1933 Sanriku (Sanriku-oki) Earthquake, Japan · 1933-03-02
- M8.2 — 1968 Tokachi-Oki Earthquake · 1968-05-16
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