Saturday, August 18, 1973 at 4:25 PM
1973-08-18 08:25 UTC · 11.511°, 121.389°
Magnitude
6.1 ms
Major
Depth
14 km
Shallow
Energy
21.3 kilotons of TNT
Gutenberg–Richter
Coordinates
11.511°, 121.389°
Felt reports
—
Tsunami
No
Source
USGS
Region
Philippines
Can cause serious damage over larger areas.
At 14 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 (~163 km away). Last major event: 1990 Luzon Earthquake (M7.8).
Area seismic-hazard score: 28/100 (moderate).
4 recorded M4.0+ events within 294 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.