Thursday, July 30, 1987 at 4:37 AM
1987-07-29 20:37 UTC · -18.240°, -178.208°
Magnitude
5.7 mw
Strong
Depth
625 km
Deep
Energy
5.4 kilotons of TNT
Gutenberg–Richter
Coordinates
-18.240°, -178.208°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 625 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 (~6584 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
5 recorded M4.0+ events within 278 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.