Friday, March 18, 1983 at 5:05 PM
1983-03-18 09:05 UTC ยท -4.883ยฐ, 153.581ยฐ
Magnitude
7.6 ms
Great
Depth
89 km
Intermediate
Energy
3.8 megatons of TNT
GutenbergโRichter
Coordinates
-4.883ยฐ, 153.581ยฐ
Felt reports
โ
Tsunami
No
Source
USGS
Region
โ
Can cause severe, widespread destruction and loss of life.
At 89 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: Philippine Trench (~3098 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
20 recorded M4.0+ events within 354 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.