Thursday, April 27, 1989 at 10:20 AM
1989-04-27 02:20 UTC · 30.601°, 140.589°
Magnitude
6.3 mw
Major
Depth
85 km
Intermediate
Energy
42.5 kilotons of TNT
Gutenberg–Richter
Coordinates
30.601°, 140.589°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 85 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 (~2349 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
5 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.