Saturday, August 18, 1973 at 5:53 PM
1973-08-18 09:53 UTC · 11.379°, 121.300°
Magnitude
4.5 mb
Moderate
Depth
86 km
Intermediate
Energy
85 tons of TNT
Gutenberg–Richter
Coordinates
11.379°, 121.300°
Felt reports
—
Tsunami
No
Source
USGS
Region
Philippines
Felt widely; can cause minor damage to weak structures.
At 86 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 Moderate range of the moment magnitude scale.
Nearest mapped structure: Philippine Fault Zone (~180 km away). Last major event: 1990 Luzon Earthquake (M7.8).
Area seismic-hazard score: 25/100 (moderate).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.