Philippines earthquakes

M4.7 earthquake 51 km NE of Alugan, Philippines

A magnitude 4.7 earthquake struck 51 km NE of Alugan, Philippines on Sat, Nov 1, 1975, 12:40 AM GMT+8 (16:40 UTC), 111 km (69 mi) below the surface.

A larger quake followed: M5.0 71 km ENE of San Policarpo, 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
4.7 (mb), light
Local time
UTC
1975-10-31 16:40:57 UTC
Depth
111.0 km (69.0 mi), intermediate-depth
Epicenter
12.501° N, 125.861° 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
39

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 41 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 5.071 km ENE of San Policarpo, Philippines · 18589 days ago · 33 km deep · 36 km away
  2. 5.173 km ENE of San Policarpo, Philippines · 18589 days ago · 33 km deep · 39 km away
  3. 4.613 km ENE of Mantang, Philippines · 18589 days ago · 64 km deep · 75 km away
  4. 5.155 km NE of San Policarpo, Philippines · 18589 days ago · 40 km deep · 8 km away
  5. 4.7Philippine Islands region · 18589 days ago · 135 km deep · 25 km away
  6. 5.320 km ENE of Sulat, Philippines · 18589 days ago · 50 km deep · 74 km away
  7. 5.022 km E of San Julian, Philippines · 18589 days ago · 33 km deep · 82 km away
  8. 4.9121 km E of San Policarpo, Philippines · 18589 days ago · 33 km deep · 94 km away
  9. 5.054 km NE of Alugan, Philippines · 18589 days ago · 14 km deep · 3 km away
  10. 4.7Samar, Philippines · 18588 days ago · 33 km deep · 33 km away
  11. 5.239 km ESE of San Policarpo, Philippines · 18588 days ago · 33 km deep · 46 km away
  12. 5.526 km ESE of Dolores, Philippines · 18588 days ago · 41 km deep · 59 km away
  13. 5.1103 km E of San Policarpo, Philippines · 18588 days ago · 33 km deep · 78 km away
  14. 5.162 km NE of Alugan, Philippines · 18588 days ago · 51 km deep · 11 km away
  15. 5.159 km NE of Alugan, Philippines · 18588 days ago · 48 km deep · 15 km away
  16. 4.742 km NE of Alugan, Philippines · 18588 days ago · 33 km deep · 9 km away
  17. 4.887 km NE of Alugan, Philippines · 18588 days ago · 33 km deep · 36 km away
  18. 4.992 km NE of Alugan, Philippines · 18587 days ago · 33 km deep · 41 km away
  19. 5.172 km ENE of San Policarpo, Philippines · 18586 days ago · 33 km deep · 24 km away
  20. 5.182 km NE of Alugan, Philippines · 18585 days ago · 33 km deep · 31 km away
  21. 5.099 km NE of Cabatuan, Philippines · 18585 days ago · 41 km deep · 75 km away
  22. 6.173 km ENE of San Policarpo, Philippines · 18583 days ago · 11 km deep · 24 km away
  23. 4.573 km ENE of San Policarpo, Philippines · 18580 days ago · 33 km deep · 31 km away
  24. 6.187 km NE of Anito, Philippines · 18574 days ago · 11 km deep · 50 km away
  25. 5.591 km NE of Cabatuan, Philippines · 18572 days ago · 26 km deep · 61 km away
  26. 4.8103 km NE of Cabatuan, Philippines · 18572 days ago · 33 km deep · 88 km away
  27. 4.889 km NE of Alugan, Philippines · 18570 days ago · 33 km deep · 41 km away
  28. 5.164 km NE of Anito, Philippines · 18570 days ago · 33 km deep · 43 km away
  29. 5.174 km NE of Anito, Philippines · 18570 days ago · 33 km deep · 43 km away
  30. 5.380 km NE of Cabatuan, Philippines · 18569 days ago · 33 km deep · 61 km away
  31. 5.493 km NE of Anito, Philippines · 18565 days ago · 33 km deep · 55 km away
  32. 5.185 km NE of Anito, Philippines · 18563 days ago · 33 km deep · 54 km away
  33. 4.974 km NE of Anito, Philippines · 18563 days ago · 33 km deep · 48 km away
  34. 5.345 km ESE of Dolores, Philippines · 18561 days ago · 64 km deep · 69 km away
  35. 5.176 km ENE of San Policarpo, Philippines · 18560 days ago · 56 km deep · 40 km away
  36. 5.230 km ESE of Dolores, Philippines · 18559 days ago · 33 km deep · 64 km away
  37. 5.671 km ENE of Alugan, Philippines · 18558 days ago · 30 km deep · 20 km away
  38. 5.333 km ESE of Dolores, Philippines · 18547 days ago · 53 km deep · 60 km away
  39. 4.935 km ESE of Dolores, Philippines · 18547 days ago · 33 km deep · 66 km away
  40. 5.282 km NE of Cabatuan, Philippines · 18545 days ago · 33 km deep · 59 km away
  41. 4.826 km E of Dapdap, Philippines · 18529 days ago · 109 km deep · 50 km away

Before

  1. 4.999 km E of San Policarpo, Philippines · 18589 days ago · 84 km deep · 74 km away
  2. 4.964 km E of San Policarpo, Philippines · 18589 days ago · 33 km deep · 44 km away
  3. 4.279 km ENE of San Policarpo, Philippines · 18589 days ago · 137 km deep · 32 km away
  4. 4.895 km ENE of San Policarpo, Philippines · 18589 days ago · 23 km deep · 51 km away
  5. 5.071 km ENE of San Policarpo, Philippines · 18589 days ago · 76 km deep · 23 km away
  6. 4.766 km ENE of San Policarpo, Philippines · 18589 days ago · 33 km deep · 21 km away
  7. 5.299 km ENE of San Policarpo, Philippines · 18589 days ago · 33 km deep · 48 km away
  8. 5.579 km NE of Alugan, Philippines · 18589 days ago · 5 km deep · 29 km away
  9. 5.0103 km ENE of San Policarpo, Philippines · 18589 days ago · 33 km deep · 61 km away
  10. 7.266 km ENE of Alugan, Philippines · 18589 days ago · 50 km deep · 15 km away
  11. 5.778 km ENE of San Policarpo, Philippines · 18590 days ago · 53 km deep · 30 km away
  12. 4.348 km NE of San Policarpo, Philippines · 18592 days ago · 384 km deep · 9 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000dcf. Read Tue, Sep 22, 2026, 2:55 PM UTC.