Friday, October 21, 2011 at 1:54 AM
2011-10-20 17:54 UTC · -23.907°, 179.874°
Magnitude
4.7 mb
Moderate
Depth
539 km
Deep
Energy
169 tons of TNT
Gutenberg–Richter
Coordinates
-23.907°, 179.874°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Felt widely; can cause minor damage to weak structures.
At 539 km this was a deep earthquake. Deep quakes are felt over very large areas but rarely cause surface damage.
This event sits in the Moderate range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~6518 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.