Thursday, April 8, 1971 at 3:46 PM
1971-04-08 07:46 UTC · -4.358°, 102.253°
Magnitude
7.0 mw
Major
Depth
81 km
Intermediate
Energy
429.9 kilotons of TNT
Gutenberg–Richter
Coordinates
-4.358°, 102.253°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 81 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 Major range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~2477 km away).
Area seismic-hazard score: 8/100 (low).
1 recorded M4.0+ event within 329 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.