Tuesday, November 1, 1983 at 1:37 AM
1983-10-31 17:37 UTC · -9.016°, 119.180°
Magnitude
6.4 mw
Major
Depth
83 km
Intermediate
Energy
60.0 kilotons of TNT
Gutenberg–Richter
Coordinates
-9.016°, 119.180°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 83 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: Cotabato Trench (~1648 km away).
Area seismic-hazard score: 8/100 (low).
4 recorded M4.0+ events within 306 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.