Friday, December 22, 1939 at 5:00 AM
1939-12-21 21:00 UTC ยท -0.018ยฐ, 122.793ยฐ
Magnitude
8.1 mw
Extreme
Depth
150 km
Intermediate
Energy
21.3 megatons of TNT
GutenbergโRichter
Coordinates
-0.018ยฐ, 122.793ยฐ
Felt reports
โ
Tsunami
No
Source
USGS
Region
โ
Among the largest earthquakes ever recorded.
At 150 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 Extreme range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~574 km away).
Area seismic-hazard score: 8/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.