Thursday, February 28, 1991 at 9:30 PM
1991-02-28 13:30 UTC · -20.118°, -175.830°
Magnitude
5.8 mw
Strong
Depth
220 km
Intermediate
Energy
7.6 kilotons of TNT
Gutenberg–Richter
Coordinates
-20.118°, -175.830°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 220 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 (~6888 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
14 recorded M4.0+ events within 282 km in the 90 days after this earthquake.
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.