Monday, June 15, 1987 at 2:31 PM
1987-06-15 06:31 UTC · 3.915°, 125.949°
Magnitude
5.6 mb
Strong
Depth
136 km
Intermediate
Energy
3.8 kilotons of TNT
Gutenberg–Richter
Coordinates
3.915°, 125.949°
Felt reports
—
Tsunami
No
Source
USGS
Region
Celebes Sea
Can cause damage to buildings and infrastructure near the epicentre.
At 136 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: Cotabato Trench (~205 km away).
Area seismic-hazard score: 19/100 (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.