Tuesday, August 22, 1989 at 2:25 AM
1989-08-21 18:25 UTC · -4.104°, 154.459°
Magnitude
6.6 mw
Major
Depth
494 km
Deep
Energy
119.8 kilotons of TNT
Gutenberg–Richter
Coordinates
-4.104°, 154.459°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 494 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: Philippine Trench (~3161 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
11 recorded M4.0+ events within 314 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.