M4.9 earthquake 99 km E of San Policarpo, Philippines

Magnitude

4.9 (mb), light

Local time

Fri, Oct 31, 1975, 10:23 PM GMT+8

UTC

1975-10-31 14:23:08 UTC

Depth

84.0 km (52.2 mi), intermediate-depth

Epicenter

12.122° N, 126.420° E

Region

Philippines

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

42

• Borongan, PhilippinesPopulation 71,431. Forecast122 kmENE
• Catbalogan, PhilippinesPopulation 107,896. Forecast171 kmENE
• Davao, PhilippinesPopulation 1,848,947. Forecast568 kmN

After

1. 4.751 km NE of Alugan, PhilippinesSat, Nov 1, 12:40 AM GMT+8 · 18589 days ago · 111 km deep · 74 km away
2. 5.071 km ENE of San Policarpo, PhilippinesSat, Nov 1, 1:07 AM GMT+8 · 18589 days ago · 33 km deep · 38 km away
3. 5.173 km ENE of San Policarpo, PhilippinesSat, Nov 1, 1:55 AM GMT+8 · 18589 days ago · 33 km deep · 35 km away
4. 4.613 km ENE of Mantang, PhilippinesSat, Nov 1, 2:50 AM GMT+8 · 18589 days ago · 64 km deep · 98 km away
5. 5.155 km NE of San Policarpo, PhilippinesSat, Nov 1, 4:11 AM GMT+8 · 18589 days ago · 40 km deep · 66 km away
6. 4.7Philippine Islands regionSat, Nov 1, 6:08 AM GMT+8 · 18588 days ago · 135 km deep · 76 km away
7. 5.320 km ENE of Sulat, PhilippinesSat, Nov 1, 7:20 AM GMT+8 · 18588 days ago · 50 km deep · 90 km away
8. 5.022 km E of San Julian, PhilippinesSat, Nov 1, 7:34 AM GMT+8 · 18588 days ago · 33 km deep · 90 km away
9. 4.9121 km E of San Policarpo, PhilippinesSat, Nov 1, 8:43 AM GMT+8 · 18588 days ago · 33 km deep · 22 km away
10. 5.054 km NE of Alugan, PhilippinesSat, Nov 1, 9:40 AM GMT+8 · 18588 days ago · 14 km deep · 75 km away
11. 5.239 km ESE of San Policarpo, PhilippinesSat, Nov 1, 1:55 PM GMT+8 · 18588 days ago · 33 km deep · 61 km away
12. 5.526 km ESE of Dolores, PhilippinesSat, Nov 1, 2:06 PM GMT+8 · 18588 days ago · 41 km deep · 77 km away
13. 5.1103 km E of San Policarpo, PhilippinesSat, Nov 1, 7:16 PM GMT+8 · 18588 days ago · 33 km deep · 5 km away
14. 5.162 km NE of Alugan, PhilippinesSat, Nov 1, 9:57 PM GMT+8 · 18588 days ago · 51 km deep · 75 km away
15. 5.159 km NE of Alugan, PhilippinesSat, Nov 1, 10:53 PM GMT+8 · 18588 days ago · 48 km deep · 86 km away
16. 4.742 km NE of Alugan, PhilippinesSun, Nov 2, 12:13 AM GMT+8 · 18588 days ago · 33 km deep · 75 km away
17. 4.887 km NE of Alugan, PhilippinesSun, Nov 2, 6:36 AM GMT+8 · 18587 days ago · 33 km deep · 70 km away
18. 5.3Philippine Islands regionSun, Nov 2, 10:39 AM GMT+8 · 18587 days ago · 50 km deep · 73 km away
19. 4.992 km NE of Alugan, PhilippinesSun, Nov 2, 7:20 PM GMT+8 · 18587 days ago · 33 km deep · 68 km away
20. 5.172 km ENE of San Policarpo, PhilippinesMon, Nov 3, 6:36 PM GMT+8 · 18586 days ago · 33 km deep · 58 km away
21. 5.182 km NE of Alugan, PhilippinesTue, Nov 4, 10:46 PM GMT+8 · 18585 days ago · 33 km deep · 71 km away
22. 6.173 km ENE of San Policarpo, PhilippinesThu, Nov 6, 8:36 PM GMT+8 · 18583 days ago · 11 km deep · 61 km away
23. 4.573 km ENE of San Policarpo, PhilippinesSun, Nov 9, 10:54 PM GMT+8 · 18580 days ago · 33 km deep · 46 km away
24. 4.875 km NE of Sulangan, PhilippinesMon, Nov 10, 8:03 AM GMT+8 · 18579 days ago · 33 km deep · 86 km away
25. 4.6117 km ENE of Sulangan, PhilippinesMon, Nov 10, 8:06 AM GMT+8 · 18579 days ago · 33 km deep · 77 km away
26. 4.882 km ENE of Sulangan, PhilippinesTue, Nov 11, 5:45 AM GMT+8 · 18578 days ago · 33 km deep · 86 km away
27. 5.1110 km NE of Sulangan, PhilippinesSun, Nov 16, 4:18 AM GMT+8 · 18574 days ago · 33 km deep · 70 km away
28. 4.889 km NE of Alugan, PhilippinesThu, Nov 20, 1:51 AM GMT+8 · 18570 days ago · 33 km deep · 89 km away
29. 5.345 km ESE of Dolores, PhilippinesSat, Nov 29, 10:17 AM GMT+8 · 18560 days ago · 64 km deep · 66 km away
30. 5.176 km ENE of San Policarpo, PhilippinesSun, Nov 30, 1:56 AM GMT+8 · 18560 days ago · 56 km deep · 34 km away
31. 5.230 km ESE of Dolores, PhilippinesMon, Dec 1, 3:57 AM GMT+8 · 18559 days ago · 33 km deep · 76 km away
32. 5.671 km ENE of Alugan, PhilippinesMon, Dec 1, 8:06 PM GMT+8 · 18558 days ago · 30 km deep · 66 km away
33. 5.333 km ESE of Dolores, PhilippinesFri, Dec 12, 4:12 PM GMT+8 · 18547 days ago · 53 km deep · 71 km away
34. 4.935 km ESE of Dolores, PhilippinesFri, Dec 12, 10:00 PM GMT+8 · 18547 days ago · 33 km deep · 74 km away
35. 4.9Philippine Islands regionWed, Dec 24, 2:33 AM GMT+8 · 18536 days ago · 93 km deep · 99 km away
36. 4.826 km E of Dapdap, PhilippinesTue, Dec 30, 2:42 PM GMT+8 · 18529 days ago · 109 km deep · 75 km away

Before

1. 4.964 km E of San Policarpo, PhilippinesFri, Oct 31, 10:17 PM GMT+8 · 18589 days ago · 33 km deep · 35 km away
2. 4.279 km ENE of San Policarpo, PhilippinesFri, Oct 31, 7:52 PM GMT+8 · 18589 days ago · 137 km deep · 53 km away
3. 4.895 km ENE of San Policarpo, PhilippinesFri, Oct 31, 7:27 PM GMT+8 · 18589 days ago · 23 km deep · 42 km away
4. 5.071 km ENE of San Policarpo, PhilippinesFri, Oct 31, 7:10 PM GMT+8 · 18589 days ago · 76 km deep · 56 km away
5. 4.766 km ENE of San Policarpo, PhilippinesFri, Oct 31, 6:53 PM GMT+8 · 18589 days ago · 33 km deep · 55 km away
6. 5.299 km ENE of San Policarpo, PhilippinesFri, Oct 31, 6:34 PM GMT+8 · 18589 days ago · 33 km deep · 64 km away
7. 5.579 km NE of Alugan, PhilippinesFri, Oct 31, 6:25 PM GMT+8 · 18589 days ago · 5 km deep · 82 km away
8. 4.899 km NE of Sulangan, PhilippinesFri, Oct 31, 6:10 PM GMT+8 · 18589 days ago · 80 km deep · 77 km away
9. 5.0103 km ENE of San Policarpo, PhilippinesFri, Oct 31, 5:38 PM GMT+8 · 18589 days ago · 33 km deep · 35 km away
10. 7.266 km ENE of Alugan, PhilippinesFri, Oct 31, 4:28 PM GMT+8 · 18589 days ago · 50 km deep · 66 km away
11. 5.778 km ENE of San Policarpo, PhilippinesThu, Oct 30, 8:13 PM GMT+8 · 18590 days ago · 53 km deep · 56 km away
12. 4.348 km NE of San Policarpo, PhilippinesTue, Oct 28, 1:16 PM GMT+8 · 18592 days ago · 384 km deep · 68 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp0000dcd (also filed as iscgem723490). Read Tue, Sep 22, 2026, 8:46 AM UTC.