Saturday, May 4, 1991 at 10:31 PM
1991-05-04 14:31 UTC · 27.148°, 140.074°
Magnitude
5.7 mw
Strong
Depth
431 km
Deep
Energy
5.4 kilotons of TNT
Gutenberg–Richter
Coordinates
27.148°, 140.074°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 431 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 (~2162 km away). Last major event: 1990 Luzon Earthquake (M7.8).
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.