Tuesday, March 7, 1978 at 10:48 AM
1978-03-07 02:48 UTC · 32.005°, 137.609°
Magnitude
6.9 mb
Major
Depth
439 km
Deep
Energy
337.6 kilotons of TNT
Gutenberg–Richter
Coordinates
32.005°, 137.609°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 439 km this was a deep earthquake. Deep quakes are felt over very large areas but rarely cause surface damage.
This event sits in the Major range of the moment magnitude scale.
Nearest mapped structure: Manila Trench (~2148 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
2 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.