Sunday, September 23, 1973 at 8:25 PM
1973-09-23 12:25 UTC · 10.348°, 125.293°
Magnitude
5.7 mb
Strong
Depth
39 km
Shallow
Energy
5.4 kilotons of TNT
Gutenberg–Richter
Coordinates
10.348°, 125.293°
Felt reports
—
Tsunami
No
Source
USGS
Region
Visayas
Can cause damage to buildings and infrastructure near the epicentre.
At 39 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 Strong range of the moment magnitude scale.
Nearest mapped structure: Philippine Fault Zone (~120 km away). Last major event: 1990 Luzon Earthquake (M7.8).
Area seismic-hazard score: 50/100 (high).
16 recorded M4.0+ events within 278 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.