Tuesday, October 30, 1984 at 9:05 AM
1984-10-30 01:05 UTC · -17.109°, -174.076°
Magnitude
6.6 mw
Major
Depth
141 km
Intermediate
Energy
119.8 kilotons of TNT
Gutenberg–Richter
Coordinates
-17.109°, -174.076°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 141 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: Philippine Trench (~6963 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 8/100 (low).
15 recorded M4.0+ events within 314 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.