Philippines earthquakes

M4.8 earthquake 48 km NE of Cortes, Philippines

A magnitude 4.8 earthquake struck 48 km NE of Cortes, Philippines on Wed, May 7, 1975, 11:31 AM GMT+8 (03:31 UTC), 46 km (29 mi) below the surface.

A larger quake followed: M5.8 40 km ENE of Santa Monica, 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
4.8 (mb), light
Local time
UTC
1975-05-07 03:31:42 UTC
Depth
46.0 km (28.6 mi), shallow
Epicenter
9.550° N, 126.542° 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
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.8 and up: 5 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 5.216 km ESE of Union, Philippines · 18760 days ago · 68 km deep · 36 km away
  2. 5.756 km ENE of Santa Monica, Philippines · 18746 days ago · 33 km deep · 77 km away
  3. 5.840 km ENE of Santa Monica, Philippines · 18746 days ago · 33 km deep · 69 km away
  4. 5.345 km NE of Santa Monica, Philippines · 18745 days ago · 44 km deep · 89 km away
  5. 5.029 km NNE of Santa Monica, Philippines · 18744 days ago · 33 km deep · 94 km away

Before

  1. 5.032 km E of Cortes, Philippines · 18777 days ago · 33 km deep · 32 km away
  2. 5.119 km E of Burgos, Philippines · 18780 days ago · 77 km deep · 40 km away
  3. 4.92 km WSW of Mabahin, Philippines · 18780 days ago · 90 km deep · 60 km away
  4. 4.942 km ENE of Cortes, Philippines · 18782 days ago · 66 km deep · 19 km away
  5. 5.137 km E of Cortes, Philippines · 18782 days ago · 33 km deep · 25 km away
  6. 5.03 km SE of Mabahin, Philippines · 18782 days ago · 52 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000ay4. Read Tue, Sep 29, 2026, 6:11 AM UTC.