Saturday, September 25, 1971 at 12:36 PM
1971-09-25 04:36 UTC · -6.528°, 146.618°
Magnitude
6.9 mw
Major
Depth
112 km
Intermediate
Energy
349.5 kilotons of TNT
Gutenberg–Richter
Coordinates
-6.528°, 146.618°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 112 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: Philippine Trench (~2479 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
2 recorded M4.0+ events within 326 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.