Philippines earthquakes

M4.6 earthquake 6 km NE of Mapanas, Philippines

A magnitude 4.6 earthquake struck 6 km NE of Mapanas, Philippines on Thu, Jul 26, 1973, 7:09 AM GMT+8 (23:09 UTC), 90 km (56 mi) below the surface.

A larger quake followed: M5.2 4 km E of Arteche, 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
4.6 (mb), light
Local time
UTC
1973-07-25 23:09:24 UTC
Depth
90.0 km (55.9 mi), intermediate-depth
Epicenter
12.526° N, 125.293° E
Tsunami flag
No
Status
Reviewed by a seismologist

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
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 1 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 5.24 km E of Arteche, Philippines · 19396 days ago · 33 km deep · 33 km away

Before

  1. 5.26 km W of Can-Avid, Philippines · 19425 days ago · 33 km deep · 61 km away
  2. 5.330 km ENE of San Policarpo, Philippines · 19425 days ago · 33 km deep · 62 km away
  3. 5.22 km NW of Alugan, Philippines · 19438 days ago · 33 km deep · 38 km away
  4. 5.318 km ENE of Alugan, Philippines · 19443 days ago · 47 km deep · 45 km away
  5. 4.55 km NE of Sulat, Philippines · 19443 days ago · 103 km deep · 79 km away
  6. 5.04 km N of Maslog, Philippines · 19447 days ago · 60 km deep · 38 km away
  7. 5.43 km SSE of San Policarpo, Philippines · 19447 days ago · 33 km deep · 48 km away
  8. 5.24 km ESE of Hipadpad, Philippines · 19447 days ago · 33 km deep · 29 km away
  9. 5.24 km E of San Policarpo, Philippines · 19448 days ago · 40 km deep · 47 km away
  10. 5.35 km W of Oras, Philippines · 19448 days ago · 56 km deep · 44 km away
  11. 5.41 km NW of Arteche, Philippines · 19448 days ago · 51 km deep · 30 km away
  12. 6.5Samar, Philippines · 19448 days ago · 33 km deep · 36 km away
  13. 6.03 km ENE of Arteche, Philippines · 19448 days ago · 44 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00002v0. Read Wed, Sep 30, 2026, 8:00 PM UTC.