Friday, March 20, 1987 at 6:51 AM
1987-03-19 22:51 UTC · -20.397°, -176.134°
Magnitude
6.6 mw
Major
Depth
214 km
Intermediate
Energy
119.8 kilotons of TNT
Gutenberg–Richter
Coordinates
-20.397°, -176.134°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 214 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 (~6868 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
13 recorded M4.0+ events within 314 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.