Sunday, August 13, 1978 at 9:11 PM
1978-08-13 13:11 UTC · 6.431°, 126.182°
Magnitude
4.0 mb
Moderate
Depth
147 km
Intermediate
Energy
15 tons of TNT
Gutenberg–Richter
Coordinates
6.431°, 126.182°
Felt reports
—
Tsunami
No
Source
USGS
Region
Mindanao
Felt widely; can cause minor damage to weak structures.
At 147 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: Philippine Trench (~60 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 57/100 (high).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.