Philippines earthquakes

M5.8 earthquake 4 km SW of Mabahin, Philippines

A magnitude 5.8 earthquake struck 4 km SW of Mabahin, Philippines on Thu, Sep 13, 1973, 2:19 PM GMT+8 (06:19 UTC), 68 km (42 mi) below the surface.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
5.8 (mb, body-wave), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1973-09-13 06:19:45 UTC
Depth
68.0 km (42.3 mi), shallow
Epicenter
9.159° N, 126.135° E
Strongest shaking
V, moderate shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
5.8mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed
5.48Mw, momentISC-GEM global catalogFinal · ±0.23

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
V, moderate shaking
Peak ground acceleration
5.1% of gravity
Peak ground velocity
1.0 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
109

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.8 and up: 12 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 5.325 km ENE of Pilar, Philippines · 19368 days ago · 36 km deep · 91 km away
  2. 5.17 km ESE of Pilar, Philippines · 19368 days ago · 54 km deep · 75 km away
  3. 4.74 km E of Union, Philippines · 19367 days ago · 69 km deep · 67 km away
  4. 4.913 km E of Pilar, Philippines · 19366 days ago · 45 km deep · 79 km away
  5. 5.228 km ENE of Pilar, Philippines · 19366 days ago · 46 km deep · 90 km away
  6. 5.117 km ENE of Hinatuan, Philippines · 19366 days ago · 33 km deep · 89 km away
  7. 4.715 km WNW of Del Carmen, Surigao del Norte, Philippines · 19366 days ago · 120 km deep · 91 km away
  8. 5.649 km E of Union, Philippines · 19365 days ago · 45 km deep · 87 km away
  9. 5.26 km NNE of Pilar, Philippines · 19359 days ago · 77 km deep · 84 km away
  10. 4.911 km ESE of Santa Monica, Philippines · 19357 days ago · 76 km deep · 92 km away
  11. 5.05 km E of Pilar, Philippines · 19357 days ago · 71 km deep · 79 km away
  12. 5.04 km NE of Tagana-an, Philippines · 19353 days ago · 82 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00003dx (also filed as iscgem756309, atlas19730913061947). Read Thu, Oct 1, 2026, 6:00 PM UTC.