Thursday, October 28, 1971 at 11:13 PM
1971-10-28 15:13 UTC · -5.536°, 153.825°
Magnitude
6.1 mw
Major
Depth
109 km
Intermediate
Energy
19.9 kilotons of TNT
Gutenberg–Richter
Coordinates
-5.536°, 153.825°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 109 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 (~3149 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
9 recorded M4.0+ events within 293 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.