Tuesday, January 21, 1964 at 1:08 AM
1964-01-20 17:08 UTC · -20.744°, 169.957°
Magnitude
6.9 mw
Major
Depth
138 km
Intermediate
Energy
337.6 kilotons of TNT
Gutenberg–Richter
Coordinates
-20.744°, 169.957°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 138 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 (~5445 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.