Tuesday, September 13, 1977 at 8:45 AM
1977-09-12 23:45 UTC · 6.899°, 124.001°
Magnitude
5.4 mb
Strong
Depth
589 km
Deep
Energy
1.9 kilotons of TNT
Gutenberg–Richter
Coordinates
6.899°, 124.001°
Felt reports
—
Tsunami
No
Source
USGS
Region
Mindanao
Can cause damage to buildings and infrastructure near the epicentre.
At 589 km this was a deep earthquake. Deep quakes are felt over very large areas but rarely cause surface damage.
This event sits in the Strong range of the moment magnitude scale.
Nearest mapped structure: Philippine Fault Zone (~178 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.