Friday, September 25, 1959 at 10:36 AM
1959-09-25 02:36 UTC · 21.964°, 121.396°
Magnitude
6.5 mw
Major
Depth
20 km
Shallow
Energy
73.9 kilotons of TNT
Gutenberg–Richter
Coordinates
21.964°, 121.396°
Felt reports
—
Tsunami
No
Source
USGS
Region
Luzon Strait
Can cause serious damage over larger areas.
At 20 km this was a shallow earthquake. Shallow quakes concentrate shaking near the epicentre and tend to be the most damaging.
This event sits in the Major range of the moment magnitude scale.
Nearest mapped structure: Manila Trench (~247 km away). Last major event: 1934 Manila Trench Earthquake.
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.