Monday, July 23, 1984 at 12:58 PM
1984-07-23 04:58 UTC · -30.421°, -179.580°
Magnitude
5.5 mw
Strong
Depth
341 km
Deep
Energy
2.7 kilotons of TNT
Gutenberg–Richter
Coordinates
-30.421°, -179.580°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 341 km this was a deep earthquake. Deep quakes are felt over very large areas but rarely cause surface damage.
This event sits in the Strong range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~6975 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
20 recorded M4.0+ events within 270 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.