Thursday, December 8, 1983 at 9:50 PM
1983-12-08 13:50 UTC · 46.248°, 150.927°
Magnitude
5.6 mb
Strong
Depth
98 km
Intermediate
Energy
3.8 kilotons of TNT
Gutenberg–Richter
Coordinates
46.248°, 150.927°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 98 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: Manila Trench (~3940 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
11 recorded M4.0+ events within 274 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.