Thursday, August 24, 1978 at 3:34 AM
1978-08-23 19:34 UTC · 4.035°, 126.596°
Magnitude
5.5 mb
Strong
Depth
71 km
Intermediate
Energy
2.7 kilotons of TNT
Gutenberg–Richter
Coordinates
4.035°, 126.596°
Felt reports
—
Tsunami
No
Source
USGS
Region
Celebes Sea
Can cause damage to buildings and infrastructure near the epicentre.
At 71 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 (~147 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 23/100 (moderate).
7 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.