Monday, March 23, 1970 at 8:20 AM
1970-03-23 00:20 UTC · 40.212°, 140.312°
Magnitude
5.7 mw
Strong
Depth
143 km
Intermediate
Energy
5.4 kilotons of TNT
Gutenberg–Richter
Coordinates
40.212°, 140.312°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 143 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: Manila Trench (~2852 km away). Last major event: 1934 Manila Trench Earthquake.
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.