Wednesday, January 21, 1987 at 9:17 AM
1987-01-21 01:17 UTC · -57.945°, -25.449°
Magnitude
5.4 mb
Strong
Depth
33 km
Shallow
Energy
1.9 kilotons of TNT
Gutenberg–Richter
Coordinates
-57.945°, -25.449°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 33 km this was a shallow earthquake. Shallow quakes concentrate shaking near the epicentre and tend to be the most damaging.
This event sits in the Strong range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~13560 km away).
Area seismic-hazard score: 8/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.