Saturday, March 21, 1964 at 11:42 AM
1964-03-21 03:42 UTC · -6.441°, 127.892°
Magnitude
6.8 mw
Major
Depth
358 km
Deep
Energy
215.5 kilotons of TNT
Gutenberg–Richter
Coordinates
-6.441°, 127.892°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 358 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 (~1273 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.