Friday, February 1, 1991 at 7:03 AM
1991-01-31 23:03 UTC ยท 35.993ยฐ, 70.423ยฐ
Magnitude
6.9 mw
Major
Depth
142 km
Intermediate
Energy
337.6 kilotons of TNT
GutenbergโRichter
Coordinates
35.993ยฐ, 70.423ยฐ
Felt reports
โ
Tsunami
No
Source
USGS
Region
โ
Can cause serious damage over larger areas.
At 142 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: Manila Trench (~4919 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
6 recorded M4.0+ events within 326 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.