Thursday, August 15, 1991 at 9:35 PM
1991-08-15 13:35 UTC · -16.064°, 168.010°
Magnitude
6.3 mw
Major
Depth
171 km
Intermediate
Energy
42.5 kilotons of TNT
Gutenberg–Richter
Coordinates
-16.064°, 168.010°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 171 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 Major range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~5034 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
10 recorded M4.0+ events within 302 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.