Wednesday, August 3, 1977 at 6:07 AM
1977-08-02 21:07 UTC · 4.562°, 125.611°
Magnitude
4.7 mb
Moderate
Depth
188 km
Intermediate
Energy
169 tons of TNT
Gutenberg–Richter
Coordinates
4.562°, 125.611°
Felt reports
—
Tsunami
No
Source
USGS
Region
Mindanao
Felt widely; can cause minor damage to weak structures.
At 188 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 Moderate range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~124 km away).
Area seismic-hazard score: 30/100 (moderate).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.