Friday, June 30, 1978 at 8:54 AM
1978-06-30 00:54 UTC · -56.470°, -27.058°
Magnitude
5.5 mb
Strong
Depth
120 km
Intermediate
Energy
2.7 kilotons of TNT
Gutenberg–Richter
Coordinates
-56.470°, -27.058°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 120 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: Cotabato Trench (~13750 km away).
Area seismic-hazard score: 8/100 (low).
2 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.