Friday, December 28, 1973 at 1:31 PM
1973-12-28 05:31 UTC · -23.871°, 179.960°
Magnitude
6.4 mb
Major
Depth
549 km
Deep
Energy
60.0 kilotons of TNT
Gutenberg–Richter
Coordinates
-23.871°, 179.960°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 549 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: Philippine Trench (~6525 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
5 recorded M4.0+ events within 306 km in the 90 days after this earthquake.
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.