Tuesday, February 21, 1978 at 3:14 PM
1978-02-21 07:14 UTC · -4.844°, 125.412°
Magnitude
6.3 mb
Major
Depth
510 km
Deep
Energy
42.5 kilotons of TNT
Gutenberg–Richter
Coordinates
-4.844°, 125.412°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 510 km this was a deep earthquake. Deep quakes are felt over very large areas but rarely cause surface damage.
This event sits in the Major range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~1106 km away).
Area seismic-hazard score: 8/100 (low).
2 recorded M4.0+ events within 302 km in the 90 days after this earthquake.
No other recent earthquakes nearby.
Browse all earthquakes →Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.