Wednesday, December 6, 1978 at 10:02 PM
1978-12-06 14:02 UTC · 44.592°, 146.581°
Magnitude
6.7 mb
Major
Depth
91 km
Intermediate
Energy
169.2 kilotons of TNT
Gutenberg–Richter
Coordinates
44.592°, 146.581°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 91 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 (~3556 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
7 recorded M4.0+ events within 318 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.