Monday, May 11, 1987 at 5:59 PM
1987-05-11 09:59 UTC · 4.470°, 127.709°
Magnitude
6.5 mw
Major
Depth
94 km
Intermediate
Energy
84.8 kilotons of TNT
Gutenberg–Richter
Coordinates
4.470°, 127.709°
Felt reports
—
Tsunami
No
Source
USGS
Region
Philippine Sea
Can cause serious damage over larger areas.
At 94 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 Major range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~63 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 32/100 (moderate).
20 recorded M4.0+ events within 310 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.