Tuesday, May 21, 1991 at 3:51 PM
1991-05-21 07:51 UTC · 10.360°, 125.346°
Magnitude
4.6 mb
Moderate
Depth
72 km
Intermediate
Energy
120 tons of TNT
Gutenberg–Richter
Coordinates
10.360°, 125.346°
Felt reports
—
Tsunami
No
Source
USGS
Region
Visayas
Felt widely; can cause minor damage to weak structures.
At 72 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 (~125 km away). Last major event: 1990 Luzon Earthquake (M7.8).
Area seismic-hazard score: 49/100 (high).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.