Thursday, July 4, 1963 at 6:58 PM
1963-07-04 10:58 UTC · -26.465°, -177.868°
Magnitude
6.8 mw
Major
Depth
181 km
Intermediate
Energy
239.0 kilotons of TNT
Gutenberg–Richter
Coordinates
-26.465°, -177.868°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 181 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 Major range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~6945 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
1 recorded M4.0+ event within 322 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.