Tuesday, September 8, 1987 at 9:35 PM
1987-09-08 13:35 UTC · 49.612°, 156.360°
Magnitude
5.6 mw
Strong
Depth
83 km
Intermediate
Energy
3.8 kilotons of TNT
Gutenberg–Richter
Coordinates
49.612°, 156.360°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 83 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: Manila Trench (~4479 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
3 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.