Friday, February 20, 1981 at 2:17 PM
1981-02-20 06:17 UTC · 51.971°, 178.156°
Magnitude
5.0 mb
Strong
Depth
137 km
Intermediate
Energy
477 tons of TNT
Gutenberg–Richter
Coordinates
51.971°, 178.156°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 137 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 (~6003 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.