Saturday, December 11, 1971 at 11:29 AM
1971-12-11 03:29 UTC · 1.761°, 127.320°
Magnitude
5.6 mw
Strong
Depth
115 km
Intermediate
Energy
3.9 kilotons of TNT
Gutenberg–Richter
Coordinates
1.761°, 127.320°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 115 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 Strong range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~361 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
2 recorded M4.0+ events within 274 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.