Thursday, August 29, 1968 at 4:42 AM
1968-08-28 20:42 UTC · 15.508°, 122.012°
Magnitude
6.4 mw
Major
Depth
18 km
Shallow
Energy
64.3 kilotons of TNT
Gutenberg–Richter
Coordinates
15.508°, 122.012°
Felt reports
—
Tsunami
No
Source
USGS
Region
Luzon
Can cause serious damage over larger areas.
At 18 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: Philippine Fault Zone (~22 km away). Last major event: 1990 Luzon Earthquake (M7.8).
Area seismic-hazard score: 100/100 (very high).
4 recorded M4.0+ events within 307 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.