Saturday, December 31, 1983 at 7:52 AM
1983-12-30 23:52 UTC ยท 36.372ยฐ, 70.738ยฐ
Magnitude
7.4 mw
Great
Depth
215 km
Intermediate
Energy
1.9 megatons of TNT
GutenbergโRichter
Coordinates
36.372ยฐ, 70.738ยฐ
Felt reports
โ
Tsunami
No
Source
USGS
Region
โ
Can cause severe, widespread destruction and loss of life.
At 215 km this was a intermediate earthquake. Intermediate-depth quakes spread shaking over a wider area but are usually less destructive at the surface.
This event sits in the Great range of the moment magnitude scale.
Nearest mapped structure: Manila Trench (~4894 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
11 recorded M4.0+ events within 346 km in the 90 days after this earthquake.
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.