Thursday, May 26, 1983 at 10:59 AM
1983-05-26 02:59 UTC ยท 40.462ยฐ, 139.102ยฐ
Magnitude
7.4 mw
Great
Depth
24 km
Shallow
Energy
1.9 megatons of TNT
GutenbergโRichter
Coordinates
40.462ยฐ, 139.102ยฐ
Felt reports
โ
Tsunami
No
Source
USGS
Region
โ
Can cause severe, widespread destruction and loss of life.
At 24 km this was a shallow earthquake. Shallow quakes concentrate shaking near the epicentre and tend to be the most damaging.
This event sits in the Great range of the moment magnitude scale.
Nearest mapped structure: Manila Trench (~2791 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
20 recorded M4.0+ events within 346 km in the 90 days after this earthquake.
No other recent earthquakes nearby.
Browse all earthquakes โData from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.