Philippines earthquakes

M5.2 earthquake 28 km ENE of Pilar, Philippines

A magnitude 5.2 earthquake struck 28 km ENE of Pilar, Philippines on Mon, Sep 24, 1973, 12:40 AM GMT+8 (16:40 UTC), 46 km (29 mi) below the surface.

A larger quake followed: M5.6 49 km E of Union, Philippines. This one was a foreshock.

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

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The earthquake

Magnitude
5.2 (mb, body-wave), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1973-09-23 16:40:34 UTC
Depth
46.0 km (28.6 mi), shallow
Epicenter
9.942° N, 126.345° E
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
5.2mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed
5.62Mw, momentISC-GEM global catalogFinal · ±0.27

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
50

Nearest places

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

Nearby

Within 100 km, magnitude 2.2 and up: 7 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.715 km WNW of Del Carmen, Surigao del Norte, Philippines · 19369 days ago · 120 km deep · 55 km away
  2. 5.649 km E of Union, Philippines · 19368 days ago · 45 km deep · 27 km away
  3. 5.26 km NNE of Pilar, Philippines · 19362 days ago · 77 km deep · 24 km away
  4. 4.911 km ESE of Santa Monica, Philippines · 19360 days ago · 76 km deep · 23 km away
  5. 5.05 km E of Pilar, Philippines · 19360 days ago · 71 km deep · 23 km away
  6. 4.975 km ENE of Pilar, Philippines · 19360 days ago · 44 km deep · 48 km away
  7. 5.04 km NE of Tagana-an, Philippines · 19356 days ago · 82 km deep · 83 km away

Before

  1. 4.913 km E of Pilar, Philippines · 19369 days ago · 45 km deep · 16 km away
  2. 4.881 km E of Union, Philippines · 19369 days ago · 37 km deep · 57 km away
  3. 4.576 km ENE of Pilar, Philippines · 19369 days ago · 33 km deep · 48 km away
  4. 4.74 km E of Union, Philippines · 19370 days ago · 69 km deep · 29 km away
  5. 5.17 km ESE of Pilar, Philippines · 19371 days ago · 54 km deep · 24 km away
  6. 5.325 km ENE of Pilar, Philippines · 19371 days ago · 36 km deep · 4 km away
  7. 5.84 km SW of Mabahin, Philippines · 19380 days ago · 68 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00003hn (also filed as iscgem756637). Read Sun, Oct 4, 2026, 8:49 PM UTC.