Sunday, March 13, 1977 at 11:20 PM
1977-03-13 15:20 UTC · 4.938°, 127.457°
Magnitude
5.3 mb
Strong
Depth
87 km
Intermediate
Energy
1.3 kilotons of TNT
Gutenberg–Richter
Coordinates
4.938°, 127.457°
Felt reports
—
Tsunami
No
Source
USGS
Region
Philippine Sea
Can cause damage to buildings and infrastructure near the epicentre.
At 87 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: Philippine Trench (~8 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 39/100 (moderate).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.