Thursday, March 21, 1991 at 1:36 AM
1991-03-20 17:36 UTC · -7.333°, 128.434°
Magnitude
5.0 mb
Strong
Depth
176 km
Intermediate
Energy
477 tons of TNT
Gutenberg–Richter
Coordinates
-7.333°, 128.434°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 176 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 Strong range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~1375 km away). Last major event: 2012 Samar Earthquake (M7.6).
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.