Wednesday, July 22, 1987 at 4:03 PM
1987-07-22 08:03 UTC · 4.051°, 125.582°
Magnitude
5.6 mw
Strong
Depth
51 km
Shallow
Energy
3.8 kilotons of TNT
Gutenberg–Richter
Coordinates
4.051°, 125.582°
Felt reports
—
Tsunami
No
Source
USGS
Region
Celebes Sea
Can cause damage to buildings and infrastructure near the epicentre.
At 51 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 (~173 km away).
Area seismic-hazard score: 20/100 (low).
20 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.