Sunday, July 10, 1977 at 10:42 AM
1977-07-10 01:42 UTC · -56.115°, -27.558°
Magnitude
6.1 mb
Major
Depth
122 km
Intermediate
Energy
21.3 kilotons of TNT
Gutenberg–Richter
Coordinates
-56.115°, -27.558°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 122 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 Major range of the moment magnitude scale.
Nearest mapped structure: Cotabato Trench (~13800 km away).
Area seismic-hazard score: 8/100 (low).
10 recorded M4.0+ events within 294 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.