Thursday, April 11, 1985 at 12:26 AM
1985-04-10 16:26 UTC · 29.962°, 138.927°
Magnitude
6.3 mw
Major
Depth
420 km
Deep
Energy
42.5 kilotons of TNT
Gutenberg–Richter
Coordinates
29.962°, 138.927°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 420 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 (~2175 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
6 recorded M4.0+ events within 302 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.