Monday, December 31, 1984 at 9:00 PM
1984-12-31 13:00 UTC · -22.986°, -66.877°
Magnitude
5.6 mw
Strong
Depth
174 km
Intermediate
Energy
3.8 kilotons of TNT
Gutenberg–Richter
Coordinates
-22.986°, -66.877°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 174 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 Strong range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~17611 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
3 recorded M4.0+ events within 274 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.