Monday, December 21, 1987 at 6:41 AM
1987-12-20 22:41 UTC · 6.826°, 123.832°
Magnitude
5.0 mb
Strong
Depth
593 km
Deep
Energy
477 tons of TNT
Gutenberg–Richter
Coordinates
6.826°, 123.832°
Felt reports
—
Tsunami
No
Source
USGS
Region
Mindanao
Can cause damage to buildings and infrastructure near the epicentre.
At 593 km this was a deep earthquake. Deep quakes are felt over very large areas but rarely cause surface damage.
This event sits in the Strong range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~173 km away).
Area seismic-hazard score: 24/100 (moderate).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.