Thursday, March 4, 1971 at 8:28 AM
1971-03-04 00:28 UTC · 30.465°, 138.455°
Magnitude
5.9 mw
Strong
Depth
450 km
Deep
Energy
11.8 kilotons of TNT
Gutenberg–Richter
Coordinates
30.465°, 138.455°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 450 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: Manila Trench (~2152 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.