Monday, February 26, 1979 at 1:56 AM
1979-02-25 17:56 UTC · 4.171°, 125.267°
Magnitude
4.6 mb
Moderate
Depth
68 km
Shallow
Energy
120 tons of TNT
Gutenberg–Richter
Coordinates
4.171°, 125.267°
Felt reports
—
Tsunami
No
Source
USGS
Region
Celebes Sea
Felt widely; can cause minor damage to weak structures.
At 68 km this was a shallow earthquake. Shallow quakes concentrate shaking near the epicentre and tend to be the most damaging.
This event sits in the Moderate range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~145 km away).
Area seismic-hazard score: 21/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.