Tuesday, July 21, 1981 at 7:47 PM
1981-07-21 11:47 UTC · -15.436°, 167.473°
Magnitude
5.8 mb
Strong
Depth
143 km
Intermediate
Energy
7.6 kilotons of TNT
Gutenberg–Richter
Coordinates
-15.436°, 167.473°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 143 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 (~4953 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
6 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.