Saturday, May 23, 1981 at 8:26 PM
1981-05-23 12:26 UTC · 3.282°, 126.499°
Magnitude
4.9 mb
Moderate
Depth
72 km
Intermediate
Energy
338 tons of TNT
Gutenberg–Richter
Coordinates
3.282°, 126.499°
Felt reports
—
Tsunami
No
Source
USGS
Region
Celebes Sea
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 Trench (~221 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 12/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.