Tuesday, October 23, 1956 at 4:41 PM
1956-10-23 08:41 UTC · 13.498°, 120.713°
Magnitude
6.7 mw
Major
Depth
90 km
Intermediate
Energy
157.9 kilotons of TNT
Gutenberg–Richter
Coordinates
13.498°, 120.713°
Felt reports
—
Tsunami
No
Source
USGS
Region
Luzon
Can cause serious damage over larger areas.
At 90 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: Lubang Fault (~84 km away).
Area seismic-hazard score: 100/100 (very high).
2 recorded M4.0+ events within 317 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.